Question

What is the smallest positive integer with factors of 16, 15, and 12?

Answer 1

-- The prime factors of 16 are 2, 2, 2, 2
-- The prime factors of 15 are 3, 5
-- The prime factors of 12 are 2, 2, 3

So the least common multiple is made up of 2, 2, 2, 2, 3, 5.

That would be 240 .

16 x 15
15 x 16
12 x 20

Answer 2

The smallest positive integer with factors of 16, 15, and 12 is 240.