Prime and composite numbers

Front

A prime number has

Back

two factors.

Front

Which of the following is a prime number?

3

,

6

,

9

,

12

Back

3

Front

Composite numbers have

Back

three or more factors.

Front

Which of the following numbers is prime? 10, 15, 5, 20

Back

5

Front

Is 1 a prime number?

Back

False

Front

Which number below is NOT prime? Options: 2, 11, 13, 18

Back

18

Front

The only factors prime numbers have are: 0 and 1, 0 and itself, 1 and itself, 1

Back

1 and itself

Front

Which list has only prime numbers? Options: 2, 3, 4, 5, 1, 5, 7, 9, 2, 3, 5, 7, 2, 4, 6, 8

Back

2, 3, 5, 7

Front

Is 33 a prime or composite number?

Back

Composite

Front

Prime numbers between 10 and 20 are:

Back

11, 13, 17, 19