Perfect number in java

1. What is a perfect number in Java?
2. What is a perfect number with example?
3. What are the first 4 perfect numbers in Java?
4. What is perfect number in Java Cognizant?

What is a perfect number in Java?

What is a perfect number in Java? A number whose sum of factors (excluding the number itself) is equal to the number is called a perfect number. In other words, if the sum of positive divisors (excluding the number itself) of a number equals the number itself is called a perfect number.

What is a perfect number with example?

perfect number, a positive integer that is equal to the sum of its proper divisors. The smallest perfect number is 6, which is the sum of 1, 2, and 3. Other perfect numbers are 28, 496, and 8,128. The discovery of such numbers is lost in prehistory.

What are the first 4 perfect numbers in Java?

We iterate through the range of values and then check whether each number is a perfect number or not. To check whether a number is perfect, we first find all the proper divisors and then add them up. We then check whether it is same as the given number. The first 4 perfect numbers are 6,28,496 and 8128.

What is perfect number in Java Cognizant?

Perfect Number A Number that can be represented as the sum of it's factors except the number itself is known as the Perfect Number. Example Input : 6 Output : Yes, It's a Prefect Number Explanation : Number = 6 Factors of 6 except 6 are 1, 2 and 3. When we add the three we get 6 itself.