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Name _____________________________
Date ___________________
Number Theory
Find the greatest common factor of each set of numbers.

1.   35 and 84

2.   90 and 30

3.   3 and 21

4.   16 and 56

5.   68 and 32

6.   93 and 81

7.   87 and 60

8.   46 and 22

9.   36 and 40

10.   72 and 9

11.   50 and 35

12.   55 and 44

13.   88 and 92

14.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.
15.   56, 88, and 16

16.   70, 40, and 95

17.   70 and 60

18.   2 and 65

19.   60 and 78

20.   9 and 48

21.   51 and 75

22.   40 and 51

23.   72, 96, and 32

24.   90, 5, and 25

25.   8 and 80

26.   80 and 76

27.   42, 70, and 63

28.   44 and 84

29.   48, 30, and 6

30.   69 and 48

31.   99 and 78

32.   5 and 6

33.   69, 63, and 75

34.   99 and 81

35.   78 and 29

36.   37 and 31

37.   8 and 28

38.   36, 12, and 6

39.   20 and 32

40.   54 and 44

41.   40, 76, and 64

42.   20 and 10

43.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.
44.   77, 49, and 63

45.   12 and 98


 


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Fractions
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