Factors and Multiples

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder. For example, 2 is a factor of 8 because 8 ÷ 2 = 4.

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer. For example, the multiples of 3 are 3, 6, 9, 12, etc.

Front

Which number is a multiple of 6? 15, 22, 31, or 36?

Back

36 is a multiple of 6.

Front

Which number is not a factor of 50? 2, 4, 5, or 10?

Back

4 is not a factor of 50.

Front

Which number is a multiple of 3, 4, and 5? 45, 48, 50, or 60?

Back

60 is a multiple of 3, 4, and 5.

Front

If there are 28 sailboats on the lake, is this number a multiple of 2 and 7?

Back

Yes, 28 is a multiple of both 2 and 7.

Front

If the number of students who voted for math is a multiple of 2 and 3, which could it be? 15, 16, 18, or 19?

Back

18 is a multiple of both 2 and 3.

Front

What is the least common multiple (LCM) of 2 and 3?

Back

The least common multiple of 2 and 3 is 6.

Front

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

Back

The greatest common factor of 12 and 16 is 4.

Front

How do you find the factors of a number?

Back

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