**The perfect number is a whole number that is equal to the sum of its proper divisors, which are the positive integers that divide the number without leaving a remainder.**

## Why is 28 a perfect number?

28 is a perfect number because it is the sum of the first seven integers. This is because every number below 28 can be expressed as the sum of the first seven integers, and every number above 28 can be expressed as the difference of the first seven integers.

## Why is 4 the perfect number?

4 is the perfect number because it is the sum of 2 and 3. 2 + 3 = 5, which is the smallest number that is greater than both 2 and 3. 4 is also the only number that can be created by adding the digits 1, 2, 3, and 4.

## Is 1 a perfect number?

There is no consensus on whether or not 1 is a perfect number. Some say that it is because it is the smallest number that can be divided evenly by both 2 and 3, while others say that it is because it is the only number that is the sum of its own digits.

There is no definitive answer to this question.

## How to find perfect number?

Finding the perfect number is a difficult task. There is no definitive answer to this question.

In fact, the perfect number is subjective and varies from person to person. Some people may believe that the perfect number is seven, while others may believe that the perfect number is eleven.

There is no right or wrong answer to this question. The only way to find the perfect number is to experiment and find what works best for you.

## What are the first 10 perfect numbers?

There are an infinite number of perfect numbers, but the first ten are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. These are the only ten numbers that are both prime and perfect.

## Is 10 a perfect number?

There is no right or wrong answer to this question, as it depends on personal preference. Some people may feel that 10 is a perfect number because it is evenly divisible by both 2 and 3, and it is the smallest number that is also a perfect number.

Others may prefer a larger number like 11 or 12, because they feel that they have more choices and can more easily manage larger numbers. Ultimately, the decision of what number to choose is up to the individual.

## What is the perfect number in the world?

It depends on the individual. However, some people believe that the perfect number is 10. Others may believe that the perfect number is infinite.

Ultimately, what is most important is that the number is perfect for the individual.

## Conclusion

The perfect number is a whole number that is equal to the sum of its positive divisors, excluding the number itself. A perfect number is thus a number that is perfectly divisible by all of its positive divisors.