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

Which number is a composite number? 17, 2, 19, 44

Back

44

Front

Is 81 prime or composite?

Back

Composite

Front

Which number listed below is a prime number? 1, 37, 63, 33

Back

37

Front

Which number below is NOT prime? 7, 9, 2, 3

Back

9

Front

Find the prime number: 10, 9, 7, 4

Back

7

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 largest two-digit prime number?

Back

The largest two-digit prime number is 97.