Here's a useful tip:figs wrote:If the number of different positive factors(2^y)(3^3)is the same as the number of different factors of 2^51, what is the value of y ?
A.11
b.12
c.13
d.48
e.51
if someone know the answer, can explain how to solve it?
Number of positive divisors or factors of a^b= b+1. So use this and find the number of all the factors of the three numbers, then equate the two since they are equal and solve the resulting equation. You should be able to solve and get 12 for y.figs wrote:If the number of different positive factors(2^y)(3^3)is the same as the number of different factors of 2^51, what is the value of y ?
A.11
b.12
c.13
d.48
e.51
if someone know the answer, can explain how to solve it?
