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 25?
- A3
- B5
- C12
- D50
2Which number is a factor of both 24 and 28?
- A2
- B56
- C10
- D11
3Which number is a factor of both 6 and 2?
- A4
- B5
- C11
- D2
4Which number is a factor of both 6 and 42?
- A6
- B5
- C12
- D11
5Which number is a factor of both 5 and 10?
- A11
- B9
- C6
- D5
6Which number is a factor of both 6 and 4?
- A12
- B6
- C7
- D2
7Which number is a factor of both 4 and 12?
- A11
- B24
- C2
- D8
8Which number is a factor of both 24 and 42?
- A10
- B3
- C84
- D8
9Which number is a factor of both 12 and 42?
- A13
- B4
- C10
- D6
10Which number is a factor of both 8 and 12?
- A4
- B5
- C11
- D7
11Which number is a factor of both 2 and 12?
- A2
- B7
- C5
- D4
12Which number is a factor of both 16 and 20?
- A17
- B2
- C10
- D8
Answer key: Factors in common
- 1. B (5)
- 2. A (2)
- 3. D (2)
- 4. A (6)
- 5. D (5)
- 6. D (2)
- 7. C (2)
- 8. B (3)
- 9. D (6)
- 10. A (4)
- 11. A (2)
- 12. B (2)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors