If N is a positive interger, is the units digit of N equal to zero?
1. 14 and 35 are factors of N
2. N = (2^5)(3^2)(5^7)(7^6)
I chose B as answer. I thought since statement 1 lists only 2 factors of N, other factors may change the units digit of N. How to approach such problems ?
QA is D.
Thanks.
1. 14 and 35 are factors of N
2. N = (2^5)(3^2)(5^7)(7^6)
I chose B as answer. I thought since statement 1 lists only 2 factors of N, other factors may change the units digit of N. How to approach such problems ?
QA is D.
Thanks.
