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1. www.geeksforgeeks.org › perfect-numberPerfect Number - GeeksforGeeks

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   25 Φεβ 2024 · A number is a perfect number if is equal to sum of its proper divisors, that is, sum of its positive divisors excluding the number itself. Write a function to check if a given number is perfect or not.

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     Perfect number is a positive integer that is equal to the...

2. www.javatpoint.com › perfect-number-program-in-cPerfect Number Program in C - Javatpoint

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   So, we can say that 6 is a perfect number. There are two ways to find the perfect number: Using for Loop; Using while Loop; Using for Loop. Write a C program that accepts an input from the user and checks the given number is a perfect or not.

3. www.geeksforgeeks.org › perfect-numbersPerfect Numbers | Definition, Formula, Examples and List -...

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   5 Αυγ 2024 · Perfect number is a positive integer that is equal to the sum of its proper divisors. Learn about its formula, examples, definition, Euclid’s Perfect Number Theorem, Mersenne Primes and practice questions at GeeksforGeeks.

4. www.geeksforgeeks.org › java-program-to-check-if-a-given-number-is-perfect-numberJava Program to Check if a Given Number is Perfect Number

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   30 Ιουλ 2023 · All known perfect numbers are even. In this article, we will learn how to Check Perfect Numbers in Java. Example 1: n = 9 Proper Divisors of 9 are 1 and 3. Sum = 1+3 = 4 ≠ 9 ⇒ 9 is not a perfect number. Example 2: n = 6 Proper Divisors of 6 are 1, 2 and 3. Sum = 1+2+3 = 6 = 6 ⇒ 6 is a perfect number

5. codeforwin.org › c-programming › c-program-to-check-perfect-numberC program to check whether a number is perfect number or not

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   19 Ιουν 2015 · Perfect number is a positive integer which is equal to the sum of its proper positive divisors. For example: 6 is the first perfect number. Proper divisors of 6 are 1, 2, 3. Sum of its proper divisors = 1 + 2 + 3 = 6. Hence 6 is a perfect number. Logic to check Perfect number. Step by step descriptive logic to check Perfect number.

6. leetcode.com › problems › perfect-numberPerfect Number - LeetCode

   leetcode.com › problems › perfect-number

   Given an integer n, return true if n is a perfect number, otherwise return false. Example 1: Input: num = 28 Output: true Explanation: 28 = 1 + 2 + 4 + 7 + 14 1, 2, 4, 7, and 14 are all divisors of 28. Example 2: Input: num = 7 Output: false Constraints: * 1 <= num <= 108.

7. www.w3schools.in › c-program-to-check-whether-a-number-is-perfect-or-notC Program to Check Whether a Number Is Perfect or Not - W3Schools

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   A perfect number is a positive whole number where all the smaller numbers that can divide into it, when added together, give the original number. For example, 6 is a perfect number because when you add up its smaller numbers that can divide into it (1, 2, and 3), the total is 6.