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 3 and 9?
- A12
- B6
- C11
- D3
2Which number is a factor of both 2 and 4?
- A6
- B2
- C11
- D8
3Which number is a factor of both 20 and 25?
- A3
- B21
- C5
- D7
4Which number is a factor of both 9 and 6?
- A3
- B8
- C4
- D7
5Which number is a factor of both 36 and 30?
- A10
- B6
- C11
- D5
6Which number is a factor of both 3 and 18?
- A4
- B3
- C8
- D2
7Which number is a factor of both 8 and 20?
- A11
- B4
- C9
- D7
8Which number is a factor of both 12 and 6?
- A2
- B13
- C5
- D8
9Which number is a factor of both 6 and 30?
- A10
- B6
- C7
- D5
10Which number is a factor of both 4 and 6?
- A12
- B7
- C5
- D2
11Which number is a factor of both 6 and 36?
- A72
- B3
- C7
12Which number is a factor of both 15 and 9?
- A16
- B3
- C5
- D11
Answer key: Factors in common
- 1. D (3)
- 2. B (2)
- 3. C (5)
- 4. A (3)
- 5. B (6)
- 6. B (3)
- 7. B (4)
- 8. A (2)
- 9. B (6)
- 10. D (2)
- 11. B (3)
- 12. B (3)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors