whats the lcm of 22 55 60??

Answer 1

Find the factors of each number:
22: 2, 11
55: 5, 11
60: 2, 2, 3, 5

Then, multiply each unique factor: if the numbers share a factor, you only need to multiply it once. 2 must be multiplied twice, because 60 has 2 as a factor twice. However, 5 and 11 are only multiplied once.

The LCM therefore will be 2 * 2 * 3 * 5 * 11 = 660.