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 10 and 8?
- A16
- B2
- C3
- D10
2Which number is a factor of both 30 and 12?
- A9
- B5
- C2
- D31
3Which number is a factor of both 15 and 20?
- A9
- B2
- C16
- D5
4Which number is a factor of both 16 and 12?
- A5
- B11
- C12
- D4
5Which number is a factor of both 6 and 24?
- A10
- B7
- C2
- D48
6Which number is a factor of both 12 and 42?
- A3
- B7
- C12
- D13
7Which number is a factor of both 36 and 30?
- A3
- B4
- C8
- D12
8Which number is a factor of both 6 and 8?
- A2
- B4
- C12
- D7
9Which number is a factor of both 3 and 6?
- A10
- B11
- C3
- D7
10Which number is a factor of both 4 and 8?
- A8
- B11
- C5
- D4
11Which number is a factor of both 20 and 16?
- A11
- B2
- C8
- D21
12Which number is a factor of both 2 and 12?
- A9
- B3
- C2
Answer key: Factors in common
- 1. B (2)
- 2. C (2)
- 3. D (5)
- 4. D (4)
- 5. C (2)
- 6. A (3)
- 7. A (3)
- 8. A (2)
- 9. C (3)
- 10. D (4)
- 11. B (2)
- 12. C (2)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors