Question

Find the least common multiple of 20 and 25.
​

Answer 1

100

Explanation:

In order to find the least common multiple of 20 and 25, first find the prime factors of 20 and 25.

20 = 2*2*5

25 = 5*5

Here,

Common factor = 5

Uncommon factors = 2, 2, 5

Least common multiple of 20 and 25 = Common factors* Uncommon factors

= 5*(2*2*5)

= 5*20

= 100

Answer 2

The least common multiple of 20 and 25 is 100.