What is the lcm of 4 & 6?

1 Answer
Apr 10, 2018

12

Explanation:

In general, to find the lowest common multiple, you multiply different factors based on which one has the highest exponent.

The prime factorization of 4:

2^2

The prime factorization of 6:

2^1*3^1

You can see that we have two different factors (2 and 3). You can see that we have two "2" factors, so choose the one that has the highest exponent (2^2)

Multiply:

2^2*3^1=4*3=12

The lcm is 12.