πagarwalmath · 5th grade · Common Core 6.NS.B.4
🔗 Factors in common
Greatest common factor and least common multiple (and prime factorization)
Name: ______________________Date: ____________
1Which number is a factor of both 20 and 4?
- A12
- B2
- C9
- D3
2Which number is a factor of both 15 and 12?
- A7
- B3
- C4
- D12
3Which number is a factor of both 25 and 5?
- A7
- B5
- C8
- D2
4Which number is a factor of both 16 and 12?
- A24
- B3
- C4
- D10
5Which number is a factor of both 12 and 9?
- A11
- B3
- C6
- D7
6Which number is a factor of both 30 and 6?
- A10
- B8
- C12
- D2
7Which number is a factor of both 8 and 20?
- A11
- B2
- C6
- D12
8Which number is a factor of both 8 and 12?
- A11
- B4
- C9
9Which number is a factor of both 6 and 15?
- A11
- B3
- C6
- D4
10Which number is a factor of both 24 and 20?
- A2
- B40
- C3
- D25
11Which number is a factor of both 10 and 2?
- A8
- B5
- C2
- D4
12Which number is a factor of both 20 and 4?
- A11
- B4
- C10
- D7
Answer key: Factors in common
- 1. B (2)
- 2. B (3)
- 3. B (5)
- 4. C (4)
- 5. B (3)
- 6. D (2)
- 7. B (2)
- 8. B (4)
- 9. B (3)
- 10. A (2)
- 11. C (2)
- 12. B (4)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors