Prime & Composite

Front

What is a prime number?

Back

A prime number is a number that has exactly 2 factors: 1 and itself. Examples: 2, 5, 7, 13, 53.

Front

What is a composite number?

Back

A composite number is a number that has 3 or more factors. Examples: 4, 22, 49, 74, 93.

Front

Is 16 a prime or composite number?

Back

Composite - it has more than 2 factors (1, 2, 4, 8, 16).

Front

Is 72 a prime or composite number?

Back

Composite - it has more than 2 factors (1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72).

Front

Is 68 a prime or composite number?

Back

Composite - it has more than 2 factors (1, 2, 4, 17, 34, 68).

Front

What are the factors of 4?

Back

The factors of 4 are 1, 2, and 4.

Front

What are the factors of 22?

Back

The factors of 22 are 1, 2, 11, and 22.

Front

What are the factors of 49?

Back

The factors of 49 are 1, 7, and 49.

Front

What are the factors of 74?

Back

The factors of 74 are 1, 2, 37, and 74.

Front

What are the factors of 93?

Back

The factors of 93 are 1, 3, 31, and 93.