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 36 and 42?
- A4
- B8
- C9
- D3
2Which number is a factor of both 6 and 9?
- A7
- B3
- C6
- D5
3Which number is a factor of both 15 and 9?
- A7
- B16
- C2
- D3
4Which number is a factor of both 4 and 24?
- A5
- B11
- C4
5Which number is a factor of both 12 and 8?
- A5
- B13
- C4
- D6
6Which number is a factor of both 12 and 9?
- A4
- B3
- C2
- D8
7Which number is a factor of both 15 and 18?
- A12
- B8
- C3
- D4
8Which number is a factor of both 4 and 8?
- A6
- B8
- C3
- D2
9Which number is a factor of both 15 and 20?
- A9
- B7
- C5
- D2
10Which number is a factor of both 2 and 12?
- A24
- B2
- C11
- D3
11Which number is a factor of both 20 and 16?
- A12
- B4
- C7
- D10
12Which number is a factor of both 25 and 30?
- A9
- B10
- C26
- D5
Answer key: Factors in common
- 1. D (3)
- 2. B (3)
- 3. D (3)
- 4. C (4)
- 5. C (4)
- 6. B (3)
- 7. C (3)
- 8. D (2)
- 9. C (5)
- 10. B (2)
- 11. B (4)
- 12. D (5)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors