A perfect number is the number for which sum of all its factors is equ

1.	A perfect number is the number for which sum of all its factors is equal to_____
A.	one less than twice the number
B.	one more than twice the number
C.	twice the number
D.	one less than twice the number
E.	None of these
Answer» D. one less than twice the number

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A perfect number is the number for which sum of all its factors is equal to_____

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