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

Perfect number

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Prime Number

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Composite Number

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Even number

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Solution

The correct option is A
Perfect number

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

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Similar questions

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

In the answer of Question Number 139 it is written -

By definition, a number, for which the sum of all its factors excluding the number itself is equal to twice the number, is called perfect number.

Should it be as below -

a number, for which the sum of all its factors excluding the number itself is equal to the number, is called perfect number.

A number for which sum all its factors is equal to twice number is called ?

Question 139

Fill in the blank to make the statement true.

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

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