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GMAT PREP DS

by bakosu » Tue Jan 20, 2009 6:35 pm
If N is a positive integer, is the units of N equal to zero?

1. 14 and 35 are factors of N

2. N = (2^5)(3^2)(5^7)(7^6)


Can someone explain how 1. is suff?
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by amitabhprasad » Tue Jan 20, 2009 6:43 pm
I think it should be "D"
factors of 14 = 7*2
factors of 35 = 7*5
multiple of 2 &5 should have 0 as the units
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