I'll solve this GCF (Greatest Common Factor) worksheet step by step. Let me work through each problem carefully.
Row 1:
- 24, 9, 15: Factors of 24: 1,2,3,4,6,8,12,24; Factors of 9: 1,3,9; Factors of 15: 1,3,5,15. Common factors: 1,3. GCF = 3
- 16, 20, 8: Factors of 16: 1,2,4,8,16; Factors of 20: 1,2,4,5,10,20; Factors of 8: 1,2,4,8. Common factors: 1,2,4. GCF = 4
Row 2:
- 10, 20, 15: Factors of 10: 1,2,5,10; Factors of 20: 1,2,4,5,10,20; Factors of 15: 1,3,5,15. Common factors: 1,5. GCF = 5
- 18, 6, 24: Factors of 18: 1,2,3,6,9,18; Factors of 6: 1,2,3,6; Factors of 24: 1,2,3,4,6,8,12,24. Common factors: 1,2,3,6. GCF = 6
- 21, 7, 35: Factors of 21: 1,3,7,21; Factors of 7: 1,7; Factors of 35: 1,5,7,35. Common factors: 1,7. GCF = 7
Row 3:
- 20, 24, 12: Factors of 20: 1,2,4,5,10,20; Factors of 24: 1,2,3,4,6,8,12,24; Factors of 12: 1,2,3,4,6,12. Common factors: 1,2,4. GCF = 4
- 10, 18, 8: Factors of 10: 1,2,5,10; Factors of 18: 1,2,3,6,9,18; Factors of 8: 1,2,4,8. Common factors: 1,2. GCF = 2
- 20, 12, 8: Factors of 20: 1,2,4,5,10,20; Factors of 12: 1,2,3,4,6,12; Factors of 8: 1,2,4,8. Common factors: 1,2,4. GCF = 4
Row 4:
- 9, 15, 21: Factors of 9: 1,3,9; Factors of 15: 1,3,5,15; Factors of 21: 1,3,7,21. Common factors: 1,3. GCF = 3
- 12, 9, 15: Factors of 12: 1,2,3,4,6,12; Factors of 9: 1,3,9; Factors of 15: 1,3,5,15. Common factors: 1,3. GCF = 3
- 12, 24, 36: Factors of 12: 1,2,3,4,6,12; Factors of 24: 1,2,3,4,6,8,12,24; Factors of 36: 1,2,3,4,6,9,12,18,36. Common factors: 1,2,3,4,6,12. GCF = 12
Row 5:
- 60, 45, 30: Factors of 60: 1,2,3,4,5,6,10,12,15,20,30,60; Factors of 45: 1,3,5,9,15,45; Factors of 30: 1,2,3,5,6,10,15,30. Common factors: 1,3,5,15. GCF = 15
- 24, 60, 48: Factors of 24: 1,2,3,4,6,8,12,24; Factors of 60: 1,2,3,4,5,6,10,12,15,20,30,60; Factors of 48: 1,2,3,4,6,8,12,16,24,48. Common factors: 1,2,3,4,6,12. GCF = 12
- 32, 72, 64: Factors of 32: 1,2,4,8,16,32; Factors of 72: 1,2,3,4,6,8,9,12,18,24,36,72; Factors of 64: 1,2,4,8,16,32,64. Common factors: 1,2,4,8. GCF = 8
Row 6:
- 60, 50, 40: Factors of 60: 1,2,3,4,5,6,10,12,15,20,30,60; Factors of 50: 1,2,5,10,25,50; Factors of 40: 1,2,4,5,8,10,20,40. Common factors: 1,2,5,10. GCF = 10
- 52, 26, 13: Factors of 52: 1,2,4,13,26,52; Factors of 26: 1,2,13,26; Factors of 13: 1,13. Common factors: 1,13. GCF = 13
- 84, 14, 49: Factors of 84: 1,2,3,4,6,7,12,14,21,28,42,84; Factors of 14: 1,2,7,14; Factors of 49: 1,7,49. Common factors: 1,7. GCF = 7
Final Answer:
Row 1: 3, 4
Row 2: 5, 6, 7
Row 3: 4, 2, 4
Row 4: 3, 3, 12
Row 5: 15, 12, 8
Row 6: 10, 13, 7
Parent Tip: Review the logic above to help your child master the concept of greatest common factor worksheet printable.
