Math
Greatest Common Factor Calculator
Find the GCF and LCM of any list of integers, plus a simplified ratio for the first two.
Inputs
Greatest Common Factor Calculator
Result
GCF
12
- LCM
- 360
- Ratio 24:36 simplified
- 2 : 3
- Count
- 3
How it's calculated
gcd(a,b) via Euclid's algorithm · lcm(a,b) = a·b / gcd(a,b) · extend by reduction.
Common questions
Difference from the GCD-LCM tool?
That one takes exactly two numbers; this one handles any list length ≥ 2.
Do negatives matter?
GCF and LCM use absolute values; signs are ignored.
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