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 8 and 20?
- A4
- B9
- C3
- D40
2Which number is a factor of both 15 and 12?
- A9
- B5
- C12
- D3
3Which number is a factor of both 30 and 25?
- A3
- B5
- C31
- D7
4Which number is a factor of both 6 and 9?
- A11
- B3
- C18
- D5
5Which number is a factor of both 6 and 12?
- A6
- B7
- C9
- D11
6Which number is a factor of both 2 and 14?
- A4
- B3
- C6
- D2
7Which number is a factor of both 3 and 12?
- A10
- B11
- C8
- D3
8Which number is a factor of both 15 and 5?
- A5
- B11
- C7
- D6
9Which number is a factor of both 8 and 20?
- A3
- B5
- C2
- D7
10Which number is a factor of both 6 and 30?
- A8
- B11
- C3
- D7
11Which number is a factor of both 30 and 36?
- A9
- B2
- C10
- D5
12Which number is a factor of both 4 and 16?
- A6
- B10
- C9
- D2
Answer key: Factors in common
- 1. A (4)
- 2. D (3)
- 3. B (5)
- 4. B (3)
- 5. A (6)
- 6. D (2)
- 7. D (3)
- 8. A (5)
- 9. C (2)
- 10. C (3)
- 11. B (2)
- 12. D (2)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors