Question

What prime factor(s) will make the LCM of 9 and 15?

Answer 1

On prime factorizing 9 and 15,
We get,
9 = 3*3
15= 3*5

Therefore
LCM = 3^2 * 5

Therefore we can say, prime factors 3 and 5 make the LCM of 9 and 15...

Hope it helps....!