Greatest Common Factor Common Core Worksheet With Answer Key Page 2
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1
2Find the greatest common factor.
18
1, 2, 3, 6, 9, 18
18
80
1, 2, 4, 5, 8, 10, 16, 20
20
1.
2.
72
1, 2, 3, 4, 6, 8, 9, 12, 18
60
1, 2, 3, 4, 5, 6, 10, 12, 15, 20
44
1, 2, 4, 11
11
70
1, 2, 5, 7
7
3.
4.
55
1, 5, 11
91
1, 7
5.
90
1, 2, 3, 5, 6
6
6.
55
1, 5, 11
11
42
1, 2, 3, 6
44
1, 2, 4, 11
28
1, 2, 4, 7
7
88
1, 2, 4, 8, 11
11
7.
8.
21
1, 3, 7
55
1, 5, 11
60
1, 2, 3, 4, 5, 6, 10
10
10. 70
1, 2, 5, 7
7
9.
70
1, 2, 5, 7, 10
77
1, 7
11. 28
1, 2, 4
4
12. 77
1, 7, 11
11
64
1, 2, 4
55
1, 5, 11
13. 22
1, 2
2
14. 95
1, 5
5
64
1, 2
15
1, 3, 5
15. 42
1, 2, 3, 6
6
16. 66
1, 2, 3, 6, 11
11
12
1, 2, 3, 4, 6
77
1, 7, 11
17. 75
1, 3, 5
5
18. 36
1, 2, 3, 4, 6
6
80
1, 2, 4, 5
30
1, 2, 3, 5, 6
19. 98
1, 2, 7, 14
14
20. 24
1, 2, 3
3
70
1, 2, 5, 7, 10, 14
51
1, 3
21. 63
1, 3, 7
7
14
1, 2, 7
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