Advertisement Remove all ads

Concept of Perfect Number

Advertisement Remove all ads

Topics

definition

Perfect Number: A number for which the sum of all its factors is equal to twice the number is called a perfect number.

notes

Perfect Number:

A number for which the sum of all its factors is equal to twice the number is called a perfect number.

The factors of 6 are 1, 2, 3, and 6.
Also, 1 + 2 + 3 + 6 = 12 = 2 × 6.
We find that the sum of the factors of 6 is twice the number 6.

All the factors of 28 are 1, 2,4, 7, 14, and 28.
Adding these we have, 1 + 2 + 4 + 7 + 14 + 28 = 56 = 2 × 28.
The sum of the factors of 28 is equal to twice the number 28.

The numbers 6 and 28 are perfect numbers.

If you would like to contribute notes or other learning material, please submit them using the button below.

Shaalaa.com | What Are Perfect Numbers?

Shaalaa.com


Next video


Shaalaa.com


What Are Perfect Numbers? [00:07:33]
S
Series: Concept of Perfect Number
0%


Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×