Factors and Multiples

Front

Factors of 20?

Back

2, 10, 5, 4, 1, 20

Front

Which number is prime?

15

,

21

,

5

,

12

Back

5

Front

Factor pair of 24?

Back

2,12

Front

Which number is the only even prime number?

Back

2

Front

What are factors of 42?

Back

1, 42, 2, 21, 7, 6

Front

Which numbers are prime? Options: 3,5,7,15; 3,5,2,1,7,13; 2,4,6,8,10; 3,5,7,9,11,13,15,21

Back

3,5,2,1,7,13

Front

List the factors of 30

Back

1, 30, 2, 15, 3, 10, 5, 6

Front

Which number is prime? Options: 13, 8, 21, 35

Back

13

Front

Factor pairs of 45? Options: 1,45,5,9; 1,3,7,9; 5,7,8,9; 7,9,5,2

Back

1,45,5,9

Front

Which number is Composite?

3

,

5

,

11

,

12

Back

12