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6th Grade GCF and LCM Worksheets
This free printable worksheet practices greatest common factor and least common multiple. It has 24 problems, and the answer key is on its own page when you print, so you can check work afterward.
Tip: Work one problem at a time and check each answer against the key at the end.
Name: ____________________Date: ____________
6th Grade GCF and LCM
- Find the least common multiple of 11 and 14.
- Find the greatest common factor of 16 and 10.
- Find the greatest common factor of 51 and 19.
- Find the least common multiple of 3 and 4.
- Find the least common multiple of 6 and 15.
- Find the least common multiple of 5 and 4.
- Find the greatest common factor of 13 and 34.
- Find the least common multiple of 8 and 7.
- Find the greatest common factor of 11 and 53.
- Find the greatest common factor of 42 and 60.
- Find the least common multiple of 15 and 8.
- Find the least common multiple of 8 and 6.
- Find the greatest common factor of 39 and 22.
- Find the least common multiple of 14 and 5.
- Find the greatest common factor of 59 and 31.
- Find the least common multiple of 3 and 11.
- Find the greatest common factor of 19 and 45.
- Find the greatest common factor of 13 and 48.
- Find the least common multiple of 13 and 9.
- Find the least common multiple of 3 and 14.
- Find the greatest common factor of 6 and 35.
- Find the least common multiple of 9 and 6.
- Find the greatest common factor of 39 and 15.
- Find the greatest common factor of 58 and 25.
Answer Key: 6th Grade GCF and LCM
- 154
- 2
- 1
- 12
- 30
- 20
- 1
- 56
- 1
- 6
- 120
- 24
- 1
- 70
- 1
- 33
- 1
- 1
- 117
- 42
- 1
- 18
- 3
- 1