LCM AND GCF

Front

What does GCF stand for?

Back

GCF stands for Greatest Common Factor, which is the largest number that divides two or more numbers without leaving a remainder.

Front

What does LCM stand for?

Back

LCM stands for Least Common Multiple, which is the smallest number that is a multiple of two or more numbers.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple they have in common.

Front

What is the GCF of 16 and 24?

Back

The GCF of 16 and 24 is 8.

Front

What is the LCM of 6 and 12?

Back

The LCM of 6 and 12 is 12.

Front

If Sara has 16 red flowers and 24 yellow flowers, how many bouquets can she make with the same number of each color?

Back

Sara can make 8 bouquets, as the GCF of 16 and 24 is 8.

Front

If Lisa has 12 coloring books, 28 markers, and 36 crayons, what is the greatest number of baskets she can make?

Back

Lisa can make 4 baskets, as the GCF of 12, 28, and 36 is 4.

Front

When will Jenny go to both classes and the library again if she goes to dance class every 6 days, karate class every 12 days, and to the library every 18 days?

Back

Jenny will go to both classes and the library again in 36 days, as the LCM of 6, 12, and 18 is 36.

Front

If two clocks chime every 15 minutes and 25 minutes, when will they chime together?

Back

The clocks will chime together in 75 minutes, as the LCM of 15 and 25 is 75.