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

What are factors?

Back

Factors are numbers that are multiplied together to get another number.

Front

List all the factors of 15.

Back

1, 3, 5, 15

Front

Is 5 prime or composite?

Back

5 is prime, because it has two factors: 1 and 5.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the largest single-digit prime number?

Back

The largest single-digit prime number is 7.

Front

Can a number be both prime and composite?

Back

No, a number cannot be both prime and composite.

Front

What is an example of a composite number?

Back

An example of a composite number is 4, which has factors 1, 2, and 4.

Front

What is an example of a prime number?

Back

An example of a prime number is 11, which has factors 1 and 11.