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 10 are 1, 2, 5, and 10.

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer. For example, the first five multiples of 3 are 3, 6, 9, 12, and 15.

Front

What is prime factorization?

Back

Prime factorization is expressing a number as the product of its prime factors. For example, the prime factorization of 32 is 2 x 2 x 2 x 2 x 2.

Front

List the first 5 multiples of 4.

Back

4, 8, 12, 16, 20.

Front

Which number is a factor of 15?

Back

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

Front

What is the greatest common factor (GCF) of 8 and 12?

Back

The GCF of 8 and 12 is 4.

Front

What is the least common multiple (LCM) of 3 and 5?

Back

The LCM of 3 and 5 is 15.

Front

Fill in the blank: 5, 10, 15, ____, 25.

Back

20.

Front

What is the prime factorization of 18?

Back

The prime factorization of 18 is 2 x 3 x 3.

Front

Which number is a factor of 30 but not a multiple of 3?

Back

The number 10 is a factor of 30 but not a multiple of 3.