What is the least common multiple of 16 18 and 20?

Answer 1

To find the least common multiple (LCM) of 16, 18, and 20, we first need to find the prime factorization of each number. The prime factorization of 16 is 2^4, 18 is 2 * 3^2, and 20 is 2^2 * 5. To find the LCM, we take the highest power of each prime factor that appears in any of the numbers: 2^4 * 3^2 * 5 = 720. Therefore, the least common multiple of 16, 18, and 20 is 720.

Answer 2

The LCM of 16, 18, and 20 is 720.

You can find the LCM by factoring

16=2*2*2*2

18=2*3*3

20=2*2*5

so the LCM=2*2*2*2*3*3*5=720