7.2 Prime and Composite Numbers

Front

What is a prime number?

Back

A prime number is a whole number greater than 1 that has exactly two distinct factors: 1 and itself.

Front

What is a composite number?

Back

A composite number is a whole number greater than 1 that has more than two factors.

Front

Is the number 1 a prime or composite number?

Back

The number 1 is neither prime nor composite.

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 difference between prime and composite numbers?

Back

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

Front

If a number is composite, what can we say about its factors?

Back

If a number is composite, it has more than two factors.

Front

Can two prime numbers have a composite difference? Give an example.

Back

Yes, for example, the prime numbers 23 and 19 have a difference of 4, which is composite.

Front

What is the prime number that comes after 29?

Back

The prime number that comes after 29 is 31.