What is the least common multiple of 12, 18 and 30?
the prime factors of 12 are 2,2 and 3
The prime factors of 18 are 2,3,and 3
The prime factors are 30 are 2,3,and 5
I need to include all the factor for each.
so I need 2,2,3 then 3 then 5
2*2*3*3*5 = 180
