Prime and Composite

Front

What is a composite number?

Back

A composite number is a number with MORE THAN TWO factors.

Front

Is 1 prime or composite?

Back

1 is neither prime nor composite.

Front

Is 21 prime or composite?

Back

21 is composite, because it has 4 factors: 1, 3, 7, and 21.

Front

What are factors?

Back

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

Front

Which list has ONLY composite numbers?

Back

The list 8, 16, 24 has ONLY composite numbers.

Front

What is a prime number?

Back

A prime number is a number with ONLY TWO factors: 1 and itself.

Front

Is 2 a prime number?

Back

Yes, 2 is a prime number because it has only two factors: 1 and 2.

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 difference between prime and composite numbers?

Back

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