prime and composite numbers

Front

Prime numbers have:

Back

exactly 2 factors

Front

Composite numbers have:

Back

more than 2 factors

Front

Find the prime number: 10, 9, 7, 4

Back

7

Front

Which number is NOT a factor of 18? Options: 5, 9, 3, 2

Back

5

Front

Which number is composite? Options: 11, 23, 13, 21

Back

21

Front

Which number listed below is a prime number?

63

,

1

,

37

,

33

Back

37

Front

Which numbers show all of the factors of 12? Options: 1,2,3,4,6,12; 1,2,3,4,6,8,12; 1,2,4,6,12; 2,4,6,8,10,12

Back

1,2,3,4,6,12

Front

Which list is only composite numbers? Options: 1,3,4; 4,6,8; 2,4,6; 5,6,8

Back

4,6,8

Front

Which list has only prime numbers?

1,5,7,9

,

2,3,4,5

,

2,3,5,7

,

2,4,5,8

Back

2,3,5,7

Front

Which of the following numbers is COMPOSITE?

2

,

37

,

41

,

4

Back

4