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 8?
- A4
- B7
- C8
- D3
2Which number is a factor of both 25 and 30?
- A3
- B2
- C5
- D9
3Which number is a factor of both 3 and 12?
- A8
- B11
- C3
- D6
4Which number is a factor of both 8 and 6?
- A2
- B6
- C12
- D8
5Which number is a factor of both 12 and 3?
- A6
- B7
- C12
- D3
6Which number is a factor of both 18 and 12?
- A19
- B8
- C11
- D6
7Which number is a factor of both 10 and 5?
- A2
- B11
- C3
- D5
8Which number is a factor of both 2 and 8?
- A16
- B8
- C3
- D2
9Which number is a factor of both 3 and 9?
- A7
- B9
- C5
- D3
10Which number is a factor of both 25 and 10?
- A3
- B26
- C6
- D5
11Which number is a factor of both 24 and 20?
- A3
- B11
- C4
- D25
12Which number is a factor of both 6 and 15?
- A7
- B30
- C3
- D11
Answer key: Factors in common
- 1. A (4)
- 2. C (5)
- 3. C (3)
- 4. A (2)
- 5. D (3)
- 6. D (6)
- 7. D (5)
- 8. D (2)
- 9. D (3)
- 10. D (5)
- 11. C (4)
- 12. C (3)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors