GCF, LCM, Prime Factorization
- 1. What is the GCF of 8, 12, and 30?
A) 6
B) 4
C) 2
D) 1
- 2. What is the GCF of 18 and 72?
A) 72
B) 1
C) 2
D) 18
- 3. What is the GCF of 20 and 320?
A) 1
B) 10
C) 20
D) 5
- 4. What is the GCF of 4, 5, and 9?
A) 2
B) 1
C) 180
D) 9
- 5. What is the LCM of 7 and 11?
A) 11
B) 7
C) 18
D) 77
- 6. What is the LCM of 8 and 24?
A) 172
B) 24
C) 8
D) 48
- 7. What is the LCM of 2, 4, and 10?
A) 40
B) 80
C) 20
D) 160
- 8. What is the LCM of 6, 9, and 12?
A) 3
B) 36
C) 54
D) 72
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