Mathematics Worksheet/Greatest Common Factors

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Find the Greatest Common Factor of:

1 3 and 6

2 4 and 2

3 7 and 14

4 10 and 25

5 13 and 39

6 14 and 20

7 6 and 14

8 18 and 45

9 22 and 33

10 15 and 25

11 24 and 36

12 32 and 56

13 25 and 65

14 36 and 90

15 42 and 63

16 10 and 28

17 27 and 63

18 105 and 175

19 32 and 60

20 42 and 70

21 75 and 150

22 63 and 90

23 48 and 75

24 130 and 30

25 46 and 23

26 56 and 84

27 75 and 125

28 90 and 125

29 65 and 26

30 135 and 195

31 220 and 440

32 75 and 60

33 12 and 60

34 95 and 57

35 48 and 84

36 35, 50 and 120

37 25, 75 and 150

38 28, 56 and 84

39 44, 55 and 77

40 24, 36 and 90

41 26, 39 and 130

42 52, 26 and 39

43 95, 133 and 57

44 76, 38 and 114

45 144, 36 and 48

46 46, 23 and 92

47 66, 33 and 22

48 315, 210 and 75

49 47, 94 and 147

50 56, 70 and 190