4.PAR.3.4: 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

List three examples of prime numbers.

Back

2, 3, 5.

Front

List three examples of composite numbers.

Back

4, 6, 8.

Front

Is the number 1 prime or composite?

Back

Neither, because it has only one positive divisor.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the largest single-digit prime number?

Back

The largest single-digit prime number is 7.

Front

Which of the following is a composite number: 11, 15, 17?

Back

15 is a composite number.

Front

Is the number 10 prime or composite?

Back

Composite.

Front

How can you tell if a number is prime?

Back

A number is prime if it cannot be divided evenly by any other numbers except for 1 and itself.