Prime and composite

Front

What is a prime number?

Back

A prime number is a number that has ONLY two factors: 1 and itself.

Front

What is a composite number?

Back

A composite number is a number that has MORE than two factors.

Front

What are factors?

Back

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

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the only even prime number?

Back

The only even prime number is 2.

Front

List the first five prime numbers.

Back

The first five prime numbers are 2, 3, 5, 7, and 11.

Front

What is the next multiple of 5 after 25?

Back

The next multiple of 5 after 25 is 30.

Front

What is the next multiple of 10 after 50?

Back

The next multiple of 10 after 50 is 60.

Front

Which number is a factor of 30? 4, 5, 6, 7

Back

5 and 6 are factors of 30.

Front

What is the greatest factor of any number?

Back

The greatest factor of any number is the number itself.