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 4 and 24?
- A12
- B5
- C2
- D3
2Which number is a factor of both 5 and 30?
- A9
- B8
- C3
- D5
3Which number is a factor of both 12 and 3?
- A12
- B3
- C9
- D13
4Which number is a factor of both 25 and 20?
- A5
- B10
- C12
- D26
5Which number is a factor of both 18 and 15?
- A3
- B5
- C7
- D30
6Which number is a factor of both 30 and 25?
- A5
- B6
- C10
- D9
7Which number is a factor of both 20 and 8?
- A4
- B10
- C12
- D7
8Which number is a factor of both 8 and 20?
- A4
- B3
- C9
9Which number is a factor of both 20 and 28?
- A2
- B3
- C5
- D6
10Which number is a factor of both 12 and 8?
- A7
- B10
- C2
- D12
11Which number is a factor of both 36 and 6?
- A7
- B6
- C10
- D12
12Which number is a factor of both 15 and 3?
- A3
- B8
- C16
- D7
Answer key: Factors in common
- 1. C (2)
- 2. D (5)
- 3. B (3)
- 4. A (5)
- 5. A (3)
- 6. A (5)
- 7. A (4)
- 8. A (4)
- 9. A (2)
- 10. C (2)
- 11. B (6)
- 12. A (3)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors