Edugain Q&A

Perfect no


what is a perfect no?

Related Question

Which of the following is a perfect number ?
a. 10 b. 6
c. 4910 d. 244

Answer

Hi Vani,

"A perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself."

 

Lets try 6,

Divisors of 6 = 1 , 2 and 3

1+2+3 = 6 (Hence 6 is a perfect number).

 

Lets try 10,

Divisors of 10 = 1, 2 and 5

1+2+5 = 8 (since this is not equal to 10, 10 is not a perfect number).

 

Regards,

ExamHelp Moderator

 

Makes sense

 

great question. thanks for asking that, Vani.


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