prime and composite

Front

What is a prime number?

Back

a number with ONLY two factors

Front

Composite number

Back

A number with more than two factors

Front

Which list has ONLY composite numbers? Options: 8, 16, 24, 2, 4, 6, 5, 10, 15, 3, 6, 9

Back

8, 16, 24

Front

What are factors?

Back

number that are multiplied together

Front

Which number is prime? Options: 9, 5, 0, 1

Back

5

Front

Which is a prime number? Options: 15, 17, 21, 39

Back

17

Front

Which number is NOT prime? Options: 3, 7, 17, 21

Back

21

Front

What are all prime numbers divisible by?

Back

1 and itself

Front

Besides 15 and 1, what is one factor of 15?

Back

3

Front

Which of the following is NOT true about prime numbers? Options: They have exactly two factors, 1 is a factor of every prime number, No prime numbers end in zero, All prime numbers are odd numbers.

Back

All prime numbers are odd numbers.