Prime & Composite

Front

What is a prime number?

Back

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

Tags

CCSS.4.OA.B.4

Front

What is a composite number?

Back

A composite number has 3 or more factors. Examples: 4, 16, 22, 49, 93.

Tags

CCSS.4.OA.B.4

Front

Is 16 a prime or composite number?

Back

Composite - it has more than 2 factors.

Tags

CCSS.4.OA.B.4

Front

Is 11 a prime or composite number?

Back

Prime - it has exactly 2 factors: 1 and 11.

Tags

CCSS.4.OA.B.4

Front

Is 15 a prime or composite number?

Back

Composite - it has more than 2 factors.

Tags

CCSS.4.OA.B.4

Front

Is 18 a prime or composite number?

Back

Composite - it has more than 2 factors.

Tags

CCSS.4.OA.B.4

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Tags

CCSS.4.OA.B.4

Front

List the first five composite numbers.

Back

4, 6, 8, 9, 10.

Tags

CCSS.4.OA.B.4

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Tags

CCSS.4.OA.B.4

Front

What is the smallest composite number?

Back

The smallest composite number is 4.

Tags

CCSS.4.OA.B.4