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 3 and 18?
- A36
- B4
- C3
- D10
2Which number is a factor of both 20 and 12?
- A6
- B12
- C4
- D3
3Which number is a factor of both 12 and 16?
- A5
- B10
- C2
- D32
4Which number is a factor of both 12 and 15?
- A11
- B13
- C3
- D4
5Which number is a factor of both 4 and 24?
- A7
- B10
- C4
- D5
6Which number is a factor of both 8 and 28?
- A11
- B2
- C9
- D3
7Which number is a factor of both 20 and 24?
- A21
- B9
- C4
- D6
8Which number is a factor of both 6 and 12?
- A5
- B11
- C12
- D3
9Which number is a factor of both 6 and 18?
- A9
- B10
- C7
- D2
10Which number is a factor of both 30 and 42?
- A2
- B10
- C12
- D4
11Which number is a factor of both 3 and 12?
- A7
- B8
- C12
- D3
12Which number is a factor of both 15 and 12?
- A3
- B9
- C11
- D7
Answer key: Factors in common
- 1. C (3)
- 2. C (4)
- 3. C (2)
- 4. C (3)
- 5. C (4)
- 6. B (2)
- 7. C (4)
- 8. D (3)
- 9. D (2)
- 10. A (2)
- 11. D (3)
- 12. A (3)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors