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 not a prime number.

Front

Which of the following is a prime number: 2, 4, 6, 8?

Back

2 is a prime number.

Front

Which of the following is a composite number: 3, 5, 9, 11?

Back

9 is a composite number.

Front

What are factors?

Back

Factors are the numbers that are multiplied together to get a product.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

Can a prime number be even?

Back

Yes, the only even prime number is 2.

Front

What is the prime factorization of 12?

Back

The prime factorization of 12 is 2 x 2 x 3.

Front

Is 15 a prime or composite number?

Back

15 is a composite number.