Prime or 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 1 a prime number?

Back

No, 1 is not a prime number.

Front

Is 2 a prime number?

Back

Yes, 2 is the only even prime number.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the largest two-digit prime number?

Back

The largest two-digit prime number is 97.

Front

List three examples of composite numbers.

Back

4, 6, 8.

Front

What is the prime factorization of 12?

Back

The prime factorization of 12 is 2 x 2 x 3.

Front

Is 15 a prime or composite number?

Back

15 is a composite number.

Front

Which of the following is a prime number: 29, 30, 31?

Back

29 and 31 are prime numbers; 30 is composite.