GCF & LCM Calculator
CalculatorsFind the greatest common factor and least common multiple.
Result
What is GCF & LCM Calculator?
GCF & LCM Calculator finds the greatest common factor and least common multiple of two or more numbers.
How to use GCF & LCM Calculator
- 1 Enter two or more whole numbers.
- 2 Read the GCF and LCM.
- 3 Add more numbers if needed.
Supported formats and limits
- Input: two or more integers
- Output: GCF and LCM
- Runs in your browser
Common uses
- Find the greatest common factor of two numbers.
- Find the least common multiple for fractions.
- Check number-theory homework.
Things to know
- It works with integers.
- It does not show the factorisation steps.
Privacy and file handling
Calculations run in your browser.
Frequently asked questions
How are GCF and LCM related?
For two numbers, their product equals the GCF multiplied by the LCM.
Can I find the GCD and LCM of more than two numbers?
Yes. You can enter a list of numbers and get both values.
Which method is used?
The tool uses prime factorisation and the Euclidean algorithm to compute the GCD and LCM.
Is anything uploaded?
No. It runs in your browser.
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