Greatest common factor worksheet



Name _____________________                                        Date:_____________________


1. 3, 6

Factors of 3:   _______________________

Factors of 6:   _______________________

GCF(3, 6) =   ___________
2. 8, 12

Factors of 8: _______________________

Factors of 12: _______________________

GCF(8, 12) = ___________
3. 25, 30

Factors of 25:   _______________________

Factors of 30:   _______________________

GCF(25, 30) =   ___________
4. 18, 30

Factors of 18: _______________________

Factors of 30: _______________________

GCF(18, 30) = ___________
5. 35, 42

Factors of 35:   _______________________

Factors of 42:   _______________________

GCF(35, 42) =   ___________
6. 20, 10

Factors of 20: _______________________

Factors of 10: _______________________

GCF(20, 10) = ___________
7. 2, 5

Factors of 2:   _______________________

Factors of 5:   _______________________

GCF(2, 5) =   ___________
8. 21, 7

Factors of 21: _______________________

Factors of 7: _______________________

GCF(21, 7) = ___________
9. 10, 9

Factors of 10:   _______________________

Factors of 9:   _______________________

GCF(10, 9) =   ___________
10. 33, 39

Factors of 33: _______________________

Factors of 39: _______________________

GCF(33, 39) = ___________



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