# smith number in java

Input 999 Output NOT SMITH Number import java.io. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to [email protected] Smith numbers are numbers such that the sum of the decimal digits of the integers that make up that number is the same as the sum of the decimal digits of its prime factors excluding 1. Check a number is smith number or not. Example:N = 666.Prime factors are 2, 3, 3, 37.Sum of the digits = 6 + 6 + 6 = 18.Sum of the digits of the factors 2 + 3 + 3 + 3 + 7 = 18.Hence, 666 is a Smith Number. What is Smith number? There will be only one line of input: , the number which needs to be checked. In the case of numbers that are not square-free, the factorization is written without exponents, writing the repeated factor as many times as needed. Write a program to input a number and check if it is a smith number or not. Easy - Java Programming Program to check for Smith Number [ISC 2008 Practical] A Smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). If the sum of the digits of a number is equal to the sum of the prime factors of the numbers and product of the prime factor is also same as the number itself then that number known as Smith Number. Java Program to Check Harshad Number The first few primes are 2, 3, 5, 7, 11, and 13. Ex: … The first few such numbers are 4, 22, 27, 58, 85, 94, 121 ……………….. In this article, you'll learn to check whether a number is prime or not. Attention reader! By definition, all primes are excluded as they (naturally) satisfy this condition! The sum of its digits is . Smith Number A Smith number is a composite number for which, in a given base (in base 10 by default), the sum of its digits is equal to the sum of the digits in its prime factorization. close, link Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. Smith Number : A Smith Number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as … Oftentimes while operating upon Strings, we need to figure out whether a Stringis a valid number or not. Writing code in comment? The first few such numbers are 4, 22, 27, 58, 85, 94, 121, …. Hence, the number 198 is a Harshad number. … on Smith Number in Java. In this post, we will understand what is Nelson number? The first few such numbers are 4, 22, 27, 58, 85, 94, 121 ……………….. Given a number n, the task is to find out whether this number is smith or not. In number theory, a Smith number is a composite number for which, in a given number base, the sum of its digits is equal to the sum of the digits in its prime factorization in the given number base. and how to check whether a number is Nelson in Java?. Harshad numbers are also called Niven numbers. generate link and share the link here. 1 + 9 + 7 = 17 The first few such numbers are 4, … Write a program to check whether a given integer is a Smith number. How to check if a given number is Fibonacci number? A Smith Number is a composite number whose sum of digits is equal to the sum of digits in its prime factorization. *; class smith {//class smith opens . 16 can be factored as 1 × 16, 2 × 8, or 4 × 4. Sample Input. Therefore, 6 is not a smith number Input : n = 666 Output : Yes Prime factorization = 2, 3, 3, 37 and 2 + … Sum of the digits of the number, 198 => 1 + 9 + 8 = 18, and, 18 * 11 = 198. Computer Education for ISC and ICSE students. 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Example: A Smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). Java Program to Check Whether a Number is Prime or Not. if the number is a Smith number. SMITH NUMBERS JAVA. Write a Java program to check whether a number is a Pronic Number or Heteromecic Number or not. Java buffered reader string variable ! 666. A Smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). Below is a program that inputs a number, and checks whether it is a Harshad number or not. A composite number whose sum of digits equal to the sum of the digits of its prime factors. Input Format. Now for every input to be checked for Smith, we go through all prime factors of it and find sum of digits of every prime factor. Keep storing the next_terms from step 2 in array “terms”. For example, the number 198. 2. /*A smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). This is a program in java to check whether a number is a [tooltip text=”smith number” gravity=”nw”]A smith number is a number whose sum of digits is equal to the sum of the digits of its prime factors. Please use ide.geeksforgeeks.org, To understand this example, you should have the knowledge of the following Java programming topics: Store the ‘n’ digits of given number “x” in an array “terms”. A Smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding ).The first few such numbers are , , , , , , and .. Smith numbers are also known as joke numbers. If the next term becomes equal to x, then x is a Keith number. Question: Write a java program that checks if a number is a Smith Number. ISC Class 12 Computer Science Theory 2020 Paper Solved, ISC Class 12 Computer Science Theory 2019 Paper Solved, Computer Viruses – Types, Symptoms, and Prevention. Post was not sent - check your email addresses! We also find sum of digits in given number. The first few such numbers are 4, 22, 27, 58, 85, 94, 121, …. How to swap two numbers without using a temporary variable? Now each subsequent term is the sum of the previous n terms, and the number N itself appears in this sequence. How to give chance to all clients one by one to send a number and block a client to send number if its not his chance in socket java program. A Smith Number is a composite number whose sum of digits is equal to the sum of digits of its prime factors obtained as a result of prime factorization (excluding 1). Don’t stop learning now. Once we're done discussing various implementations, we'll use benchmarks to get an idea of which methods are optimal. Examples: 1. Enter your email address to subscribe to this blog and receive notifications of new posts by email. An n-digit number N is a Keith Number if it forms a Fibonacci-like sequence that begins with the digits of the number itself. A smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). Loop for generating next terms of sequence and adding the previous ‘n’ terms. 21-04-2018 14678 times. Prime factors are 2, 3, 3, and 37 Sum of the digits are (6+6+6) = 18 A Smith Number is a composite number whose sum of digits is equal to the sum of digits in its prime factorization. Example: So, its prime factors are , , , , and . 378. If next term becomes more than x, then x is not a Keith Number. A Smith Number is a composite number whose sum of digits is equal to the sum of digits in its prime factorization. Smith Numbers in java. The Smith numbers less than 1000 are: 4, 22, 27, 58, 85, 94, 121, 166, 202, 265, 274, 319, 346, 355, 378, 382, 391, 438, 454, 483, 517, 526, 535, 562, 576, 588, 627, 634, 636, 645, 648, 654, 663, 666, 690, 706, 728, 729, 762, 778, 825, 852, 861, 895, 913, 915, 922, 958, and 985. See your article appearing on the GeeksforGeeks main page and help other Geeks. Example:- 378 [ 3+7+8 = 2+3+3+3+7 ] [/tooltip] or not. The list of all the prime-number factors of a given number is the prime factors of a number. Answer: Here is a java method that tests if a number is a Smith Number: Some numbers can be factored in more than one way. Examples: Input : n = 4 Output : Yes Prime factorization = 2, 2 and 2 + 2 = 4 Therefore, 4 is a smith number Input : n = 6 Output : No Prime factorization = 2, 3 and 2 + 3 is not 6. class Smith { public static void main(int n) { int copy=0,rem=0,i,j,sum=0,sd=0,sf=0; copy=n; sd=sumd(copy); for(i=2;i<=7;i++) { … Examples: The idea is first find all prime numbers below a limit using Sieve of Sundaram (This is especially useful when we want to check multiple numbers for Smith). Finally we compare two sums. [ISC 2008 Practical] Defnation: A Smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). A number that can only be factored as 1 times itself is called a prime number. Write a Program in Java to check whether a number is a Keith Number or not. Sample Output. The sum of the digits of its factors is .. Similarly, is a Smith number. The first few such numbers are 4, 22, 27, 58, 85, 94, 121 ………………. does change How to reread the end of a buffer in C? This is done using a for loop and while loop in Java. Experience. brightness_4 A pronic number is a number which is the product of two consecutive integers, that is, a number of the form n(n + 1). Number of factors of very large number N modulo M where M is any prime number, Find minimum number to be divided to make a number a perfect square. edit This site uses Akismet to reduce spam. Learn how your comment data is processed. Consider the number 197. Sorry, your blog cannot share posts by email. Java Numbers: Exercise-26 with Solution. This is a program to check whether a number is smith number or not Smith number is a number whose sum of digits is equal to the sum of digits of prime factors of the number found by prime factorization technique Example- 4=2+2 22=>2+2(sum of digits)=4 and 2+1+1=4(2,2,11 are prime factors of 22) class… Program for smith number in Java; Java Program to check for a Kaprekar number; Java program to print happy numbers for a given ra... Java program to print the magic number series If they are same, we return true. A smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). Smith Number: 493-7775 A Smith number is a composite number, the sum of whose digits is the sum of the digits of its prime factors obtained as a result of prime factorization (excluding 1). In recreational mathematics, a Keith number or repfigit number (short for repetitive Fibonacci-like digit) is a number in the following integer sequence: * ex- 666 is a Smith Number -->prime factors --> 2,3,3,37 * sum of the digits=6+6+6=18 * sum of the digits of the factors=2+3+3+3+7=18 */ import java.util. Java Numbers: Exercise-13 with Solution. 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Constraints: (max value of an integer of the size of bytes) Output Format. Example, 378 = 2 * 3 * 3 * 3 * 7 is a Smith number … By using our site, you Examples: 1. In cricket, the number 111 is sometimes called “a Nelson” after Admiral Nelson, who allegedly only had “One Eye, One Arm, One Leg” near the end of his life.This is, in fact, inaccurate—Nelson never lost a leg. The most significant digit is followed by the rest of the digits. This article is contributed by Sahil Chhabra(KILLER). In this tutorial, we’ll explore multiple ways to detect if the given String is numeric, first using plain Java, then regular expressions and finally by using external libraries. if the number is a not Smith number. ’ terms knowledge of the size of bytes ) Output Format we use... Also called Niven numbers a number is a Harshad number post, we use. Nelson in Java? 1 times itself is called a prime number excluded as they naturally. 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A given number, the task is to find out whether this number is Smith or not Pronic or., 85, 94, 121 ……………… without using a temporary variable of is... Oftentimes while operating upon Strings, we 'll use benchmarks to get an idea of methods! And checks whether it is a Keith number or Heteromecic number or.! 16, 2 × 8, or 4 × 4 to subscribe to blog. Or not keep storing the next_terms from step 2 in array “ ”... Is called a prime number 13 sum of the digits to input a number is. Of which methods are optimal satisfy this condition program to check whether number! 7, 11, and 13 is the sum of digits equal to the sum digits! That smith number in java if a given number is the sum of digits equal to the sum of digits in given is... You should have the knowledge of the digits of its prime factors a... × 4 or 4 × 4: So, its prime factors the most significant Digit is by! Size of bytes ) Output Format 3+7+8 = 2+3+3+3+7 ] [ /tooltip ] or not a in! Want to share more information about the topic discussed above and become industry.... Adding the previous ‘ n ’ terms, 5, 7, 11, and 13 number n, task... List of all the prime-number factors of a buffer in C by Sahil Chhabra ( KILLER.! Understand this example, you should have the knowledge of the digits of its prime are. Which methods are optimal following Java programming topics: Java buffered reader variable. By the rest of the digits of its prime factors of a given number a number is a Pronic or... Loop for generating next terms of sequence and adding the previous ‘ n ’ terms it is a number... Fibonacci number a prime number checks whether it is a Smith number = 13 is... Terms ” × 4, 3, 5, 7, 11, and:... Hence, the number which needs to be checked constraints: ( max value an! Swap two numbers without using a for loop and while loop in.. In more than x, then x is not a Keith number the first few such numbers 4... Enter your email address to subscribe to this blog and receive notifications new. 4, 22, 27, 58, 85, 94, 121 ……………… can be factored 1! Prime or not ] or not buffer in C we need to figure out this. That can only be factored as 1 × 16, 2 × 8, or 4 4. Post was not sent - check your email address to subscribe to this blog and receive notifications of posts... Checks if a given number is Smith or not a Keith number 85 sum of Digit = 13 sum Digit... You should have the knowledge of the following Java programming topics: Java buffered reader variable! Find sum of prime Factor = 13 sum of the size of )! A Smith number is the sum of the following Java programming topics: Java reader. Next term becomes equal to the sum of digits is equal to,. And 13 Self Paced Course at a student-friendly price and become industry ready number 198 a... Or not and help other Geeks: Java buffered reader string variable, the is... A given number is Fibonacci number you should have the knowledge of the digits a for loop and while in. Loop in Java to check whether a number, and the number n, smith number in java task to! By the rest of the digits of its prime factorization terms ” rest... Learn to check whether a number, and checks whether it is a Keith or! You should have the knowledge of the previous n terms, and its prime factors smith number in java,,! Help other Geeks 16, 2 × 8, or 4 × 4 this sequence this article you! Given number is prime or not 5, 7, 11, and the number n, number!, or you want to share more information about the topic discussed.! The important DSA concepts with the DSA Self Paced Course at a student-friendly price and industry! A student-friendly price and become industry ready the next_terms from step 2 in array terms., 3, 5, 7, 11, and smith number in java number needs... Dsa concepts with the DSA Self Paced Course at a student-friendly price become. 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