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 12?
- A10
- B4
- C24
- D6
2Which number is a factor of both 2 and 4?
- A11
- B8
- C6
- D2
3Which number is a factor of both 3 and 15?
- A30
- B3
- C2
- D8
4Which number is a factor of both 20 and 25?
- A50
- B4
- C5
- D11
5Which number is a factor of both 24 and 20?
- A40
- B8
- C11
- D2
6Which number is a factor of both 12 and 16?
- A4
- B9
- C3
- D11
7Which number is a factor of both 15 and 18?
- A3
- B4
- C12
- D7
8Which number is a factor of both 12 and 30?
- A7
- B3
- C60
- D13
9Which number is a factor of both 12 and 2?
- A7
- B9
- C10
- D2
10Which number is a factor of both 6 and 24?
- A2
- B12
- C11
- D7
11Which number is a factor of both 12 and 3?
- A6
- B2
- C3
12Which number is a factor of both 4 and 12?
- A11
- B7
- C8
- D2
Answer key: Factors in common
- 1. B (4)
- 2. D (2)
- 3. B (3)
- 4. C (5)
- 5. D (2)
- 6. A (4)
- 7. A (3)
- 8. B (3)
- 9. D (2)
- 10. A (2)
- 11. C (3)
- 12. D (2)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors