GCD vs LCM: what is the difference?
Understand which result divides every input and which result is divisible by every non-zero input.
ReadCommon divisors and multiples explained
Understand the identities behind the calculator
Learn the difference between GCD and LCM, Euclid's remainder method, and the exact left fold used for more than two integers.
Euclidean algorithm with remainder steps
Follow exact division equations until the divisor becomes zero and the last non-zero remainder gives the GCD.
ReadHow to calculate GCD and LCM of multiple numbers
Use an exact left fold so every intermediate pair and the final divisibility result remain visible.
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