Free Year 6 gcf & lcm worksheets
6 free printable Year 6 gcf & lcm worksheets for Australian classrooms, greatest common factor and lowest common multiple. Every answer key is computed in code from the exact questions on the page, so the answers are never wrong. Pick a set below to print or save as a PDF, or make your own. There is no login, and Pro unlocks the printable answer key and removes the watermark.
What the Australian Curriculum asks for in Year 6 gcf & lcm
The Version 9.0 Mathematics content description mapped to this topic, in plain English. Open one for the full breakdown, a teaching guide and every matching worksheet.
Content descriptions are paraphrased in our own words from the Australian Curriculum Version 9.0, © ACARA, licensed CC BY 4.0.
What is gcf & lcm?
The greatest common factor is the largest factor two numbers share; the lowest common multiple is the smallest multiple they share.
How to teach it
List factors (for the highest common factor) or multiples (for the lowest common multiple) of each number and find the shared one. Later use prime factors.
Worked example
Common mistake
Mixing up which to list (factors vs multiples), and stopping before finding the common value.
What's inside
- Find the LCM of 9 and 6:
- Find the GCF of 2 and 7:
- Find the GCF of 10 and 6:
- Find the LCM of 8 and 9:
- Find the GCF of 3 and 8:
- Find the LCM of 12 and 10:
Sample questions. Each printable set below has fresh numbers; its printable answer key is available with Pro.
Year 6 gcf & lcm worksheet sets
All gcf & lcm worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.
Frequently asked questions
Are these Year 6 gcf & lcm worksheets free?
Yes. Every worksheet on ChalkBee is free to view and print or save as a PDF, with no login required, and the answer key is free too. Pro removes the watermark and adds differentiated sets, worksheet packs and unlimited custom generation.
Do the worksheets have answer keys?
Yes, free, on every sheet. The answers are computed in code from the exact questions on the page, and the key prints on a page of its own so the student sheet stays clean.
Which Australian Curriculum codes does this cover?
These gcf & lcm worksheets sit alongside the Version 9.0 Mathematics content description AC9M6N02 for Year 6. Each code links to a page with a plain-English summary you can paste into a planning document.
How was the Year 6 level chosen?
The worksheets use Australian year-level naming and Australian English spelling, matched to an age-equivalent level in the library. There are 6 printable sets on this page, with dollars and cents for money and metric units for measurement.
How do I print or download them?
Open any set, then use your browser's print option to print it or to save it as a PDF. The pages are laid out to print cleanly on standard letter or A4 paper.