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 30 and 12?
- A24
- B9
- C7
- D3
2Which number is a factor of both 8 and 12?
- A9
- B2
- C5
- D7
3Which number is a factor of both 4 and 2?
- A12
- B5
- C2
- D6
4Which number is a factor of both 2 and 4?
- A10
- B4
- C2
- D9
5Which number is a factor of both 30 and 36?
- A8
- B11
- C6
- D72
6Which number is a factor of both 5 and 20?
- A3
- B11
- C9
- D5
7Which number is a factor of both 15 and 20?
- A16
- B8
- C11
- D5
8Which number is a factor of both 3 and 18?
- A3
- B2
- C9
- D7
9Which number is a factor of both 25 and 15?
- A5
- B26
- C7
- D11
10Which number is a factor of both 4 and 10?
- A3
- B11
- C7
- D2
11Which number is a factor of both 18 and 12?
- A7
- B11
- C2
- D4
12Which number is a factor of both 9 and 3?
- A10
- B3
- C9
- D6
Answer key: Factors in common
- 1. D (3)
- 2. B (2)
- 3. C (2)
- 4. C (2)
- 5. C (6)
- 6. D (5)
- 7. D (5)
- 8. A (3)
- 9. A (5)
- 10. D (2)
- 11. C (2)
- 12. B (3)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors