GCF & LCM worksheets

Free printable gcf & lcm worksheets with answer keys, greatest common factor and lowest common multiple. Pick a grade below for ready-made PDFs, or generate a fresh one. Every answer is computed in code, so the key is never wrong.

Grade 4 GCF & LCM

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Set A

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Set B

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Set C

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Set D

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Set E

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Set F

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Grade 5 GCF & LCM

All Grade 5 worksheets →

Set A

Printable PDF · answer key

Set B

Printable PDF · answer key

Set C

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Set D

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Set E

Printable PDF · answer key

Set F

Printable PDF · answer key

Grade 6 GCF & LCM

All Grade 6 worksheets →

Set A

Printable PDF · answer key

Set B

Printable PDF · answer key

Set C

Printable PDF · answer key

Set D

Printable PDF · answer key

Set E

Printable PDF · answer key

Set F

Printable PDF · answer key

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