Question

What is the least common multiple of 20, 35, and 7?

Answer 1

140.

Explanation:

20 = 2 * 2 * 5

35 = 5 * 7

7 is primes.

So the LCM is 2 * 2 * 5 * 7 = 140.

Answer 2

least common multiple of 25, 30 and 7 is 140.