LCM and GCF

Front

What is the GCF (Greatest Common Factor)?

Back

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

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

What is the GCF of 16 and 40?

Back

8

Front

What is the GCF of 8 and 20?

Back

4

Front

What is the GCF of 50 and 40?

Back

10

Front

Sara has 16 red flowers and 24 yellow flowers. What is the greatest number of bouquets she can make with the same number of each color?

Back

8

Front

What is the LCM (Least Common Multiple)?

Back

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

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

Two clocks chime every 15 minutes and 25 minutes. When will they chime together?

Back

75 minutes

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.