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) true
B) false
  • 3. Find the GCF for 40 and 48
A) 2
B) 4
C) 16
D) 8
  • 4. Find the LCM for 3 and 11
A) 22
B) 33
C) 44
D) 11
  • 5. Find the GCF for 24 and 48
A) 8
B) 2
C) 12
D) 24
  • 6. Find the LCM for 8 and 10
A) 40
B) 20
C) 32
D) 60
  • 7. FInd the GCF for 22 and 96
A) 4
B) 6
C) 2
D) 8
  • 8. Find the LCM for 4 and 12
A) 36
B) 8
C) 48
D) 12
  • 9. Find the GCF for 12 and 84
A) 4
B) 2
C) 12
D) 6
  • 10. Find the LCM for 12 and 15
A) 5
B) 180
C) 30
D) 60
  • 11. FInd the GCF for 63 and 54
A) 6
B) 12
C) 9
D) 3
  • 12. FInd the LCM for 2, 5, and 7
A) 35
B) 45
C) 20
D) 70
  • 13. Find the GCF for 18, 36, and 81
A) 9
B) 3
C) 6
D) 2
  • 14. Find the LCM for 6, 18, and 36
A) 108
B) 6
C) 18
D) 36
  • 15. Find the GCF for 54, 60, and 6
A) 4
B) 3
C) 6
D) 2
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Answer Key

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

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