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  1. www.javatpoint.com › perfect-number-program-in-javaPerfect Number Program in Java - Javatpoint

    In this section, we will learn what is a perfect number in Java and also create Java programs to check if the given number is perfect or not. Also, we will create a Java program for finding all the perfect numbers between the given range.

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

    Jul 30, 2023 · Hence, a number is a perfect number only if it is equal to its aliquot sum. 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. javatutoring.com › perfect-number-in-javaPerfect Number In Java Program - 3 Ways | Programs

    Jun 5, 2024 · 1) The number which is equal to the sum of its divisors is called a perfect number. 2) Read the entered long number, assigned to the long variable n. 3) while loop iterates until the condition (i<=n/2) is false. If the remainder of n/i=0 then add i value to sum and increase the i value.

  4. www.sanfoundry.com › java-program-check-given-number-perfect-numberPerfect Number Program in Java - Sanfoundry

    A perfect number in Java is a positive integer that is equal to the sum of its proper positive divisors excluding the number itself. For example, the divisors of 6 are 1, 2 and 3. The sum of the proper divisors of 6 is 1 + 2 + 3 = 6, which is a perfect number.

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

    Feb 25, 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. Examples: Input: n = 15. Output: false. Divisors of 15 are 1, 3 and 5. Sum of . divisors is 9 which is not equal to 15. Input: n = 6. Output: true.

  6. www.tutorialgateway.org › perfect-number-program-in-javaPerfect Number Program in Java - Tutorial Gateway

    Perfect Number in Java. Any number can be a Java Perfect Number if the sum of its positive divisors excluding the number itself is equal to that number. For example, 28 is a perfect number because 28 is divisible by 1, 2, 4, 7, 14 and 28 and the sum of these values is 1 + 2 + 4 + 7 + 14 = 28. Remember, we have to exclude the number itself.

  7. www.prepbytes.com › blog › javaPerfect Number in Java

    May 17, 2023 · There are three ways to find the perfect number in Java: Using for Loop. Using while Loop. Using recursion in Java. Method 1: Perfect Number in Java Using For Loop. In this method, we will write a Java program that accepts an integer input from the user and checks whether the given number is a perfect number or not. Code Implementation. Java.

  8. www.tutorialspoint.com › java-program-to-check-if-a-given-number-is-perfect-numberJava Program to Check if a given Number is Perfect Number

    Apr 25, 2023 · Step 1 − Declare and initialize an integer variable ‘n1’ to check if it is a perfect number or not and another integer variable ‘add’ to store the result of sum of factors of 496. Step 2 − Take a for loop that will run 495 times i.e. ‘n1-1’ because we have to exclude the given number.

  9. testbook.com › maths › perfect-numbers-in-javaPerfect Numbers in Java: Programs in Java with Solved Examples

    May 4, 2023 · What is a Perfect Number in Java? Any number can be a Perfect Number in Java if the sum of its positive divisors excluding the number itself is equal to that number.

  10. www.edureka.co › blog › perfect-number-program-in-javaJava Program to check Perfect Number - Edureka

    Jun 17, 2021 · This article on perfect number in Java explains how to implement a Java program to check if a given number is a perfect number or not.