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 4 and 8?
- A6
- B2
- C10
- D7
2Which number is a factor of both 25 and 10?
- A9
- B20
- C5
- D7
3Which number is a factor of both 15 and 21?
- A10
- B7
- C3
- D2
4Which number is a factor of both 20 and 15?
- A10
- B9
- C21
- D5
5Which number is a factor of both 8 and 4?
- A3
- B4
- C9
- D12
6Which number is a factor of both 8 and 28?
- A9
- B2
- C56
- D8
7Which number is a factor of both 6 and 12?
- A6
- B7
- C4
- D8
8Which number is a factor of both 10 and 12?
- A24
- B7
- C2
- D12
9Which number is a factor of both 10 and 25?
- A3
- B5
- C50
- D11
10Which number is a factor of both 12 and 42?
- A12
- B2
- C11
- D7
11Which number is a factor of both 30 and 12?
- A5
- B9
- C7
- D2
12Which number is a factor of both 3 and 9?
- A3
- B7
- C6
- D10
Answer key: Factors in common
- 1. B (2)
- 2. C (5)
- 3. C (3)
- 4. D (5)
- 5. B (4)
- 6. B (2)
- 7. A (6)
- 8. C (2)
- 9. B (5)
- 10. B (2)
- 11. D (2)
- 12. A (3)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors