What is the LCM of 8 and16 and 22?

Answer 1

Determine the prime factors of all three numbers.

8 = 2 x 2 x 2 = 23

16 = 2 x 2 x 2 x 2 = 24

22 = 2 x 11

The LCM is the product of the highest power of each prime factor.

The highest power of 2 is 24 = 16

The highest power of 11 is just 11 (technically it is 111 but this equals 11)

The LCM is therefore 16 x 11 = 176.