What is the LCM of the numbers '11' '16' and '20'?

Answer 1

First express each of the numbers in prime factors:

16 = 24

11 = 11 (Prime number)

20 = 22 x 5

Now, select the highest power for all prime numbers:

24, 11, and 5 then multiply them all together. (16)(11)(5) = 880 is the LCM

Note: 22 is not "counted" because it was a factor at a higher power in one of the other numbers. Take only the factor with the highest power.

Answer 2

The LCM is 880.