GCF / HCF Calculator
Finds the greatest common factor (highest common factor) of two numbers.
Lilu Baba's GCF/HCF Calculator finds the largest number that divides both your inputs evenly, using the Euclidean algorithm.
How to use this calculator
- Enter two whole numbers.
- Their greatest common factor updates instantly.
GCF / HCF
—
FAQ
GCF / HCF Calculator — frequently asked questions
Yes — Greatest Common Factor (GCF) and Highest Common Factor (HCF) are two names for the exact same concept.
Simplifying fractions, solving ratio problems, and factoring algebraic expressions, among other uses.