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 28?
- A2
- B3
- C7
- D5
2Which number is a factor of both 24 and 30?
- A3
- B25
- C60
- D8
3Which number is a factor of both 12 and 3?
- A10
- B12
- C3
- D9
4Which number is a factor of both 12 and 42?
- A84
- B2
- C4
- D8
5Which number is a factor of both 25 and 30?
- A6
- B5
- C10
- D11
6Which number is a factor of both 16 and 4?
- A9
- B10
- C17
- D4
7Which number is a factor of both 16 and 12?
- A12
- B11
- C4
- D7
8Which number is a factor of both 36 and 30?
- A2
- B5
- C9
- D11
9Which number is a factor of both 4 and 8?
- A3
- B16
- C10
- D2
10Which number is a factor of both 20 and 5?
- A10
- B5
- C9
11Which number is a factor of both 4 and 28?
- A11
- B2
- C10
- D3
12Which number is a factor of both 12 and 9?
- A3
- B7
- C10
- D18
Answer key: Factors in common
- 1. A (2)
- 2. A (3)
- 3. C (3)
- 4. B (2)
- 5. B (5)
- 6. D (4)
- 7. C (4)
- 8. A (2)
- 9. D (2)
- 10. B (5)
- 11. B (2)
- 12. A (3)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors