Prime and Composite Numbers

Front

What is a prime number?

Back

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A composite number is a number greater than 1 that has more than two positive divisors.

Front

Is 1 a prime number?

Back

No, 1 is neither prime nor composite.

Front

Is 2 a prime number?

Back

Yes, 2 is the only even prime number.

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

List three prime numbers.

Back

2, 3, 5.

Front

List three composite numbers.

Back

4, 6, 8.

Front

Is 15 a prime number or a composite number?

Back

Composite.

Front

Is 29 a prime number or a composite number?

Back

Prime.