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 10 and 12?
- A2
- B3
- C6
- D10
2Which number is a factor of both 4 and 8?
- A2
- B8
- C10
- D5
3Which number is a factor of both 15 and 10?
- A8
- B9
- C16
- D5
4Which number is a factor of both 18 and 30?
- A11
- B9
- C2
- D60
5Which number is a factor of both 9 and 21?
- A3
- B5
- C11
- D2
6Which number is a factor of both 30 and 18?
- A3
- B4
- C31
- D12
7Which number is a factor of both 6 and 24?
- A3
- B7
- C12
8Which number is a factor of both 5 and 30?
- A5
- B3
- C9
- D6
9Which number is a factor of both 20 and 25?
- A5
- B12
- C9
- D50
10Which number is a factor of both 20 and 16?
- A21
- B10
- C2
- D11
11Which number is a factor of both 4 and 16?
- A8
- B5
- C4
- D32
12Which number is a factor of both 25 and 15?
- A2
- B30
- C10
- D5
Answer key: Factors in common
- 1. A (2)
- 2. A (2)
- 3. D (5)
- 4. C (2)
- 5. A (3)
- 6. A (3)
- 7. A (3)
- 8. A (5)
- 9. A (5)
- 10. C (2)
- 11. C (4)
- 12. D (5)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors