Prime and composite

Front

What is a prime number?

Back

A prime number is a number with ONLY two factors: 1 and itself.

Front

What is a composite number?

Back

A composite number is a number with MORE than two factors.

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

List the first five composite numbers.

Back

4, 6, 8, 9, 10.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the smallest composite number?

Back

The smallest composite number is 4.

Front

Is the number 1 a prime number?

Back

No, 1 is not a prime number because it has only one factor.

Front

Is the number 2 a composite number?

Back

No, 2 is a prime number because it has only two factors.

Front

Which of the following is a prime number: 4, 5, 6?

Back

5 is a prime number.

Front

Which of the following is a composite number: 7, 8, 9?

Back

8 and 9 are composite numbers.