Factors, Prime and Composite Numbers

Front

Factor

Back

"Factors" are the numbers you multiply to get another number. For instance, factors of 15 are 3 and 5, because 3×5 = 15

Front

Which number is a factor of 10? Options: 3, 5, 4, 8

Back

5

Front

Which number is NOT a factor of 10? Options: 1, 2, 3, 5

Back

3

Front

Is 3 a factor of 12?

Back

yes

Front

Is 6 a factor of 24?

Back

Yes

Front

Prime numbers have:

Back

Exactly 2 factors

Front

Composite numbers

Back

Have more than 2 factors

Front

Which of these numbers is a prime number?

15

,

17

,

21

,

39

Back

17

Front

Which list is only composite numbers? Options:

1, 3, 4

,

3, 4, 6

,

4, 6, 8

,

5, 6, 8

Back

4, 6, 8

Front

Who made an error and included a composite number? Eric: 5, 7, 17, 23; Maya: 3, 5, 13, 17; Bella: 2, 3, 17, 19; Joan: 7, 11, 13, 21

Back

Joan