What is the LCM of 80 and 50?

Answer 1

LCM of (a) and (b) is given as (ab)/(GCF(a,b))

To find the GCF, factor and find common factors.

50 factors to [2 5 5]

80 factors to [2 2 2 2 5]

Common factors are [2 5] = 10

50 * 80 / 10 = 400 ■

Answer 2

The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.

The least common multiple of 80 and 50 is 400.