What is the LCM of154 and 198?

Answer 1

To find the LCM you first need to split the numbers down into their prime factors. In this case we have:

154 = 2x7x11

198 = 2x3x3x11

The next step is to identify any common prime factors and cross off the duplicates. In this case, both numbers have 2 and 11 as a prime factor. That leaves us with 2, 3, 3, 7 and 11. Multiplying these together gives 1,386.

Thus the LCM of 154 and 198 is 1,386