LCM and GCF
Contributed by: Henry

  • 1. A factor is a number that can divide into another number with no remainder
A) true
B) false
  • 2. A multiple must be greater than or equal to the largest starting number.
A) false
B) true
  • 3. Find the GCF for 40 and 48
A) 4
B) 8
C) 2
D) 16
  • 4. Find the LCM for 3 and 11
A) 33
B) 22
C) 11
D) 44
  • 5. Find the GCF for 24 and 48
A) 2
B) 24
C) 8
D) 12
  • 6. Find the LCM for 8 and 10
A) 32
B) 60
C) 20
D) 40
  • 7. FInd the GCF for 22 and 96
A) 8
B) 6
C) 4
D) 2
  • 8. Find the LCM for 4 and 12
A) 8
B) 12
C) 48
D) 36
  • 9. Find the GCF for 12 and 84
A) 12
B) 2
C) 4
D) 6
  • 10. Find the LCM for 12 and 15
A) 30
B) 180
C) 60
D) 5
  • 11. FInd the GCF for 63 and 54
A) 12
B) 9
C) 3
D) 6
  • 12. FInd the LCM for 2, 5, and 7
A) 20
B) 45
C) 35
D) 70
  • 13. Find the GCF for 18, 36, and 81
A) 2
B) 6
C) 9
D) 3
  • 14. Find the LCM for 6, 18, and 36
A) 18
B) 36
C) 6
D) 108
  • 15. Find the GCF for 54, 60, and 6
A) 2
B) 6
C) 3
D) 4
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Answer Key

1.A   2.B   3.B   4.A   5.B   6.D   7.D   8.B   9.A   10.C   11.B   12.D   13.C   14.B   15.B  

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