Prime and Composite Numbers

Front

What is a prime number?

Back

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

Front

Is 29 a prime or composite number?

Back

29 is a prime number.

Front

Is 39 a prime or composite number?

Back

39 is a composite number.

Front

Is 49 a prime or composite number?

Back

49 is a composite number.

Front

What are factors?

Back

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

Front

Which of the following is a composite number: 21, 2, 0, 29?

Back

21 is a composite number.

Front

Which of the following is a prime number: 31, 43, 59, 89?

Back

All of them (31, 43, 59, and 89) are prime numbers.

Front

Which number is composite: 15, 3, 5, 13?

Back

15 is a composite number.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.