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Greatest common factor (GCF) - K5 Learning

Greatest common factor (GCF) Grade 5 Factoring Worksheet Find the greatest common factor of the two numbers shown. 1. 80 40 2. 49 7 3. 81 54 4. 77 44 5. 11 66 6. 21 56 7. 77 84 8. 54 60 9. 42 35 10. 7 77