Greatest Common Factor - Math Geek Mama Page 2
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Greatest Common Factor
Find the greatest common factor of each of the following sets of numbers
by making a list. J
1. 3 and 9
2. 12 and 18
3. 10 and 15
3
6
5
4. 45 and 75
5. 9, 18 and 42
6. 14, 35, and 84
15
3
7
Find the greatest common factor of each of the following sets of numbers
using prime factorization. J
7. 21 and 25
8. 27 and 81
9. 48 and 60
1
27
4
10. 4 and 16
11. 18 and 30
12. 16, 52 and 76
4
6
4
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