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?
- A37
- B3
- C8
- D11
2Which number is a factor of both 20 and 28?
- A4
- B21
- C12
- D11
3Which number is a factor of both 3 and 6?
- A3
- B7
- C4
4Which number is a factor of both 24 and 18?
- A2
- B5
- C12
- D25
5Which number is a factor of both 6 and 3?
- A9
- B2
- C3
- D11
6Which number is a factor of both 5 and 15?
- A5
- B11
- C2
- D6
7Which number is a factor of both 20 and 24?
- A21
- B12
- C4
- D9
8Which number is a factor of both 12 and 4?
- A10
- B11
- C5
- D4
9Which number is a factor of both 30 and 25?
- A8
- B11
- C12
- D5
10Which number is a factor of both 15 and 3?
- A3
- B4
- C6
- D7
11Which number is a factor of both 20 and 15?
- A9
- B3
- C7
- D5
12Which number is a factor of both 30 and 6?
- A10
- B8
- C4
- D6
Answer key: Factors in common
- 1. B (3)
- 2. A (4)
- 3. A (3)
- 4. A (2)
- 5. C (3)
- 6. A (5)
- 7. C (4)
- 8. D (4)
- 9. D (5)
- 10. A (3)
- 11. D (5)
- 12. D (6)
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/preview-factors