# How do you find the Least common multiple of 10, 3?

Dec 11, 2016

$30$

#### Explanation:

3 is a prime number and 3 is not a factor of 10.
Therefore the LCM will be product of 3 and 10.

$3 \times 10 = 30$

This can also be shown by writing the multiple of 10 (the bigger number, until one is found that is a multiple of 3.

$10 \text{ "20" } 30$

The third multiple is also a multiple of 3.