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How to Find the Greatest Common Divisor
Formula
The GCD is the largest number that divides both inputs evenly, found efficiently via the Euclidean algorithm.
GCD and LCM are closely related: GCD(a,b) x LCM(a,b) = a x b.
Common use cases:
- Simplifying fractions
- Cryptography key generation
- Scheduling and timing calculations
Frequently Asked Questions
Dr. David Park
Applied Mathematician, PhD Mathematics
David holds a PhD in Applied Mathematics from MIT. He has published research on numerical methods and computational algorithms used in engineering and scientific calculators.
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