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HCF & LCM formulas
6 formulas for HCF & LCM, from the Arithmetic & Quantitative Aptitude section of the Quantix formula library. Tap 🧮 next to a formula to solve it for any variable with step-by-step working.
| Name | Formula | Note |
|---|---|---|
| Product rule (two numbers) | HCF × LCM = a × b 🧮 Solve step by step | |
| HCF of fractions | HCF of numerators / LCM of denominators | |
| LCM of fractions | LCM of numerators / HCF of denominators | |
| Largest number dividing a, b, c leaving remainder r | HCF(a − r, b − r, c − r) | |
| Largest number leaving same remainder | HCF(|a − b|, |b − c|, |c − a|) | |
| Smallest number leaving remainder r with each divisor | LCM(divisors) + r |
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