GCF and LCM Practice

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

Front

What is the Least Common Multiple (LCM)?

Back

The LCM is the smallest number that is a multiple of two or more numbers.

Front

How do you find the GCF of 12 and 36?

Back

The GCF of 12 and 36 is 12.

Front

How do you find the LCM of 6 and 9?

Back

The LCM of 6 and 9 is 18.

Front

If Jenny goes to dance class every 6 days and karate class every 9 days, when will she do both again?

Back

18 days.

Front

What is the GCF of 24 and 36?

Back

The GCF of 24 and 36 is 12.

Front

What is the LCM of 4 and 5?

Back

The LCM of 4 and 5 is 20.

Front

If Lisa has 12 coloring books and 36 crayons, what is the greatest number of baskets she can make?

Back

12 baskets.

Front

What is the GCF of 15 and 25?

Back

The GCF of 15 and 25 is 5.

Front

What is the LCM of 3 and 7?

Back

The LCM of 3 and 7 is 21.