Least Common Multiple of 4, 7, and 18 (LCM of 4, 7, and 18)

Least Common Multiple (LCM) of 4, 7, and 18

What is the Least Common Multiple (LCM) of 4, 7, and 18? Here we will show you step-by-step how to find the Least Common Multiple of 4, 7, and 18.

Step 1) First we find and list the prime factors of 4, 7, and 18 (Prime Factorization):

Prime Factors of 4:
2, 2

Prime Factors of 7:
7

Prime Factors of 18:
2, 3, 3

Step 2) Then we look at the frequency of the prime factors as they appear in each set above. List each prime factor the greatest number of times it occurs in any of the sets:

2, 2, 3, 3, 7

Step 3) Finally, we multiply the prime numbers from Step 2 together.

2 x 2 x 3 x 3 x 7 = 252

That's it. The Least Common Multiple (LCM) of 4, 7, and 18 is 252.

Least Common Multiple Calculator
Please enter another two or three numbers below so we can calculate the Least Common Multiple (LCM) for you:

Least Common Multiple (LCM) of 4, 7, and 19
Here is the next set of numbers we found the Least Common Multiple for.