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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.
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.
Jul 30, 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
Java Perfect Number : How to write Perfect Number program in Java using For Loop and While loop and find the Perfect Numbers between 1 and 100 with example.
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.
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
Apr 23, 2023 · The number which is equal to the sum of its divisors is called a perfect number. Read the entered long number, assigned to the long variable n. While loop iterates until the condition (i<=n/2) is false. If the remainder of n/i=0 then add i value to the sum and increase the i value.
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
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.
Jan 11, 2024 · The program defines a class PerfectNumberChecker containing a static method isPerfectNumber that takes an integer number as input and returns true if the number is a perfect number, and false otherwise. Inside the main method, replace the value of number with the desired number you want to check.
