Factors and Multiples

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number. For example, factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer. For example, multiples of 8 include 8, 16, 24, 32, etc.

Front

Which of these is not a factor of 12? 1, 2, 12, 24

Back

24 is not a factor of 12.

Front

Which number is a factor of 25? 1, 2, 10, 50

Back

1 is a factor of 25.

Front

Which number is a multiple of 8? 4, 5, 24, 30

Back

24 is a multiple of 8.

Front

What are the factors of 15?

Back

The factors of 15 are 1, 3, 5, and 15.

Front

True or False: 2 is the only even prime number.

Back

True.

Front

What is the least common multiple (LCM) of 4 and 5?

Back

The LCM of 4 and 5 is 20.

Front

What is the greatest common factor (GCF) of 12 and 16?

Back

The GCF of 12 and 16 is 4.

Front

How do you find factors of a number?

Back

To find factors, divide the number by whole numbers starting from 1 up to that number and check which divisions result in whole numbers.