Question

What is the least common multiple of 8, 11, and 20?
PL help

Answer 1

Answer: 40

Explanation:

The smallest number that all three numbers go into evenly is 40.

Therefore the LCM of 8, 11, and 20 is 40.

Answer 2

440

Explanation:

To find the Least common multiple (L.C.M) of 8, 11 and 20, it means that:

• you list the first several multiples of each number,
• look for multiples common to both lists,
• Look for the smallest number common in both sides,
• the number is the LCM you are looking for.

8 = 2,2,2

11 = 1, 11

20= 2,2,5

LCM of 8,11,20 = 2× 2 × 2 × 11 × 5

= 440