# What is the product of all the factors in 18?

The factors of 18 are 1, 2, 3, 6, 9, and 18.

Their product is **5,832** .

### What is the least common multiple of 12 18 and 21?

The LCM of 12, 18, and 21 is 252 Factors of 12: 2^2, 3 Fadtors of 18: 2, 3^2 Factors of 21: 3, 7 Since the LCM of a set of numbers is mathematically defined to be the product of all the prime factors in the set taken to the highest degree they appear, the LCM must be the product of 22 X 32 X 7 = 252. 252 is the smallest number to be…