Greatest Common Factor Calculator
Free online Greatest Common Factor (GCF) Calculator with step-by-step solutions. 100% client-side, no data upload.
Greatest Common Factor Calculator
This free online Greatest Common Factor Calculator finds the GCF/GCD of two or more positive integers using the Euclidean algorithm. It lists all common factors, shows prime factorizations, and provides step-by-step solutions.
All processing is done client-side with no server interaction, ensuring your data never leaves your device.
Frequently Asked Questions
Got questions? We've got answers.
How do I use this GCF calculator?
Enter at least two positive integers. The calculator finds the Greatest Common Factor using the Euclidean algorithm and shows step-by-step work.
What is the difference between GCF and GCD?
GCF (Greatest Common Factor) and GCD (Greatest Common Divisor) mean exactly the same thing — the largest number that divides all given numbers evenly.
Is this calculator private?
Yes. All calculations run locally in your browser. No data is transmitted or stored on any server.
Can I find the GCF of more than two numbers?
Yes! Click the '+ Add' button to add more input fields. The GCF is computed iteratively for all numbers entered.