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 20 and 4?
- A2
- B9
- C5
- D8
2Which number is a factor of both 30 and 42?
- A5
- B2
- C84
- D7
3Which number is a factor of both 16 and 20?
- A10
- B4
- C6
- D11
4Which number is a factor of both 4 and 8?
- A3
- B7
- C5
- D4
5Which number is a factor of both 6 and 30?
- A2
- B7
- C10
- D11
6Which number is a factor of both 10 and 2?
- A2
- B11
- C3
- D4
7Which number is a factor of both 18 and 6?
- A11
- B12
- C3
- D19
8Which number is a factor of both 30 and 36?
- A10
- B6
- C12
- D72
9Which number is a factor of both 18 and 42?
- A4
- B11
- C19
- D3
10Which number is a factor of both 16 and 20?
- A3
- B2
- C17
- D7
11Which number is a factor of both 2 and 10?
- A2
- B10
- C9
- D4
12Which number is a factor of both 8 and 6?
- A9
- B6
- C2
- D7
Answer key: Factors in common
- 1. A (2)
- 2. B (2)
- 3. B (4)
- 4. D (4)
- 5. A (2)
- 6. A (2)
- 7. C (3)
- 8. B (6)
- 9. D (3)
- 10. B (2)
- 11. A (2)
- 12. C (2)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors