What is the LCM of 36 and 60 using prime factorization?

Answer 1

2 x 11 = 22
2 x 2 x 3 x 3 = 36
Combine the factors, eliminating duplicates.
2 x 2 x 3 x 3 x 11 = 396, the LCM

Answer 2

2 x 2 x 2 x 2 = 16

2 x 2 x 3 x 3 = 36

2 x 2 x 2 x 2 x 3 x 3 = 144, the LCM

Answer 3

2 x 2 x 3 x 3 = 36

2 x 2 x 3 x 5 = 60

2 x 2 x 3 x 3 x 5 = 180, the LCM

Answer 4

You need at least two numbers to find an LCM no matter what method you choose.