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 12 and 20?
- A12
- B5
- C2
- D40
2Which number is a factor of both 2 and 8?
- A5
- B9
- C3
- D2
3Which number is a factor of both 12 and 8?
- A16
- B2
- C10
- D9
4Which number is a factor of both 24 and 30?
- A9
- B25
- C11
- D3
5Which number is a factor of both 25 and 5?
- A4
- B9
- C5
- D26
6Which number is a factor of both 12 and 30?
- A3
- B60
- C10
- D7
7Which number is a factor of both 6 and 12?
- A9
- B3
- C5
- D7
8Which number is a factor of both 25 and 30?
- A3
- B2
- C5
- D6
9Which number is a factor of both 10 and 12?
- A4
- B5
- C2
- D8
10Which number is a factor of both 20 and 8?
- A8
- B9
- C2
- D11
11Which number is a factor of both 18 and 12?
- A6
- B4
- C8
- D11
12Which number is a factor of both 16 and 4?
- A2
- B12
- C11
- D10
Answer key: Factors in common
- 1. C (2)
- 2. D (2)
- 3. B (2)
- 4. D (3)
- 5. C (5)
- 6. A (3)
- 7. B (3)
- 8. C (5)
- 9. C (2)
- 10. C (2)
- 11. A (6)
- 12. A (2)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors