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Factors
Multiples
Prime and Composite Numbers
2 Digit by 1 Digit
2 Digit by 2 Digit
100
Which number is a factor of 24? 12, 9, 5, 7
12
100
Find the first 10 multiples of 6.
6, 12, 18, 24, 30, 36, 42, 48, 54, 60
100
Identify the following number as prime or composite. 45
45 is a composite number.
100

12 x 3

36

100

22 x 15

330

200
Which number is NOT a factor of 30? 5, 1, 8, 6
8
200
Find the first 10 multiples of 5. Find the first 10 multiples of 3. What is the Least Common Multiple that both 3 and 5 share?
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 Least Common Multiple: 15
200
Identify the following number as prime or composite. 23
23 is a prime number.
200

15 x 4

60

200

34 x 16

544

300
Which number is a factor of 10? 20, 12, 5, 3
5
300
Which is a list of multiples of 9? A) 9, 18, 28, 39 B) 9, 18, 27, 36 C) 9, 18, 25, 32 D) 9, 27, 34, 48
B) 9, 18, 27, 36
300
Identify the following number as prime or composite. 13
13 is a prime number.
300

17 x 5

85

300

54 x 16

864

400
Which number is NOT a factor of 36? 12, 6, 4, 8
8
400
Find the first 10 multiples of 4. Find the first 10 multiples of 7. What is the Least Common Multiple that both 4 and 7 share?
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70 Least Common Multiple: 28
400
Identify the following number as prime or composite. 28
28 is a composite number.
400

18 x 9

Rule: Subtract 5, Add 2 Next three numbers: 16, 18, 13

400

65 x 19

1,235

500
List ALL of the factors of 24.
1, 2, 3, 4, 6, 8, 12, 24
500
Which is a list of multiples of 8? A) 16, 24, 32, 42 B) 8, 16, 26, 32 C) 16, 24, 32, 40 D) 8, 16, 32, 46
C) 16, 24, 32, 40
500
Identify the following number as prime or composite. 33
33 is a composite number.
500

19 x 3

57

500

76 x 28

2,128