Prime or Composite

Front

What is a prime number?

Back

A prime number is a number that has exactly two distinct positive factors: 1 and itself.

Front

What is a composite number?

Back

A composite number is a number that has more than two positive factors.

Front

Is 7 a prime number?

Back

Yes, 7 is a prime number because its only factors are 1 and 7.

Front

Is 20 a prime or composite number?

Back

20 is a composite number because it has factors other than 1 and 20.

Front

What are the factors of 9?

Back

The factors of 9 are 1, 3, and 9.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

Is 1 a prime number?

Back

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

Front

What is the difference between prime and composite numbers?

Back

Prime numbers have exactly two factors, while composite numbers have more than two factors.

Front

List three prime numbers.

Back

2, 3, 5.

Front

List three composite numbers.

Back

4, 6, 8.