Question

LCM of 10a and 15a^2

Factors of 10a are 10,a,2,5 but the prime factors are 2,5,a

Factors of 15a^2 are 15,a^2, 3,5,a,a
Prime factors are 3,5,a,a

Common between two are 5 and a

So is the LCM of 10a and 15^2 5a?

Answer 1

Wait. LCM= 2•3•5•a^2= 30a^2?

Answer 2

It is 30a^2

Answer 3

Thank you so much. It's making more sense now