What is the least common multiple of 10 and 25?

The LCM of 10 and 25 is 50.

You can find the LCM by dividing the product of a pair of numbers by their GCF:

The product of 10 and 25 is 250.

The GCF of 10 and 25 is 5. (10 = 2*5 and 25 = 5*5)

The LCM of 10 and 25 is 250/5 = 50.

You can also list the multiples of each number in the set and identify the lowest one in both lists:

Multiples of 10 are 10, 20, 30, 40, 50, and so on.

Multiples of 25 are 25, 50, 75, and so on.

So the LCM of 10 and 25 is 50.