11.2 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

Is 2 a prime number?

Back

Yes, 2 is a prime number because it can only be divided by 1 and 2.

Front

Is 1 a prime number?

Back

No, 1 is not a prime number because it does not meet the definition of having exactly two distinct positive divisors.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the smallest composite number?

Back

The smallest composite number is 4.

Front

List three prime numbers.

Back

2, 3, 5.

Front

List three composite numbers.

Back

4, 6, 8.

Front

Is 19 a prime or composite number?

Back

19 is a prime number.

Front

Is 88 a prime or composite number?

Back

88 is a composite number.