Proper divisors

The number of even proper divisors of 1008 is

22 23 none of these 24

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1 solution

Shubham Wakalkar
Mar 30, 2015

1008 = 2.(2^3.3^2.7^1) .for even proper divisors- (3+1)(2+1)(1+1) - 1 = 24 - 1= 23.

why has 2^4 become 2^3

Sky Vandy - 5 years, 1 month ago

Why did u subtract 1

Akshita Chugh - 4 years, 5 months ago

Subtracted one because it includes 1008

Manvendra Singh - 4 years, 5 months ago

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