LCM and GCF Review

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) is the largest positive integer that divides all the numbers in a given set without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

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

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more numbers.

Front

How do you find the LCM of two numbers?

Back

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

Front

What is the GCF of 8 and 10?

Back

2

Front

What is the GCF of 28 and 35?

Back

7

Front

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

Back

8

Front

Peter has 18 oranges and 27 pears. What is the greatest number of fruit baskets he can make?

Back

3

Front

If the school cafeteria serves tacos every sixth day and cheeseburgers every eighth day, how many days until they are both on the menu again?

Back

24 days

Front

What is a factor?

Back

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