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integral divisors

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integral divisors

by sanju09 » Tue Feb 24, 2009 5:56 am
How many integral divisors does the number 120 have?

A. 14
B. 16
C. 12
D. 20
E. None of these
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by bluementor » Tue Feb 24, 2009 5:59 am
120 = 2^3 x 3 x 5

No. of divisors = (3+1)*(1+1)*(1+1) = 4*2*2 = 16

Choose B.

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