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ARITHMETIC & NUMBER THEORY
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GCD & LCM Finder

Calculate the Greatest Common Divisor (HCF) and Least Common Multiple (LCM) for multiple integers with Euclidean division steps, Bezout coefficients, and prime factorizations.

✓Multi-Number Euclidean Algorithm
✓Extended GCD Bezout Identity
✓100% In-Browser BigInt Arithmetic

Active Set: (48, 180)

GCD12
LCM720

Integer Inputs

Separated by commas/spaces

Results & Mathematical Proof

Greatest Common Divisor (GCD)
12
Least Common Multiple (LCM)
720
Bézout's Identity (Linear Combination):(48) × (4) + (180) × (-1) = 12
Prime Factorizations:
48:2^4 × 3
180:2^2 × 3^2 × 5
Euclidean Algorithm Steps (4 divisions)
StepDividend (a)Divisor (b)QuotientRemainder
148180048
218048336
34836112
4361230

GCD & LCM Calculator - Free Client-Side Calculator

Calculate Greatest Common Divisor (GCD / HCF) and Least Common Multiple (LCM) for multiple integer inputs with Euclidean algorithm steps.

Designed for students, researchers, and professionals, this utility performs Client-side calculations inside your browser with zero network calls or data tracking.

Core Tool Capabilities

  • Multi-Number Inputs: Calculate GCD and LCM across two or more comma-separated integers.
  • Euclidean Step Visualizer: Shows step-by-step Euclidean division algorithm breakdown.
  • Prime Factorization Trees: Displays prime factor trees for input numbers.
  • Coprime Verification: Verifies if integer pairs are coprime (relative primes).

Local Browser Privacy

Your files are processed locally on your device. Files are not uploaded, transmitted, or stored on remote servers.

Once the page has loaded, you can disconnect your network connection and continue using this tool offline.

Target Use Cases

  • • Academic & Educational Work
  • • Daily Utility

Technical Specifications & Platform Limits

Execution Environment
Client-side Browser Memory

Runs locally in modern web browsers

Calculation Engine
IEEE 754 / BigInt High Precision

Accurate mathematical evaluation

Privacy Guarantee
No Telemetry or Storage

Zero server-side logging or tracking

Step-by-Step Workflow

1

Enter Values

Provide numerical parameters into the active inputs.

2

Select Options

Choose units, formulas, or precision rules.

3

View Results

Instantly view exact calculated results, breakdowns, and step explanations.

Practical Real-World Use Cases

Academic & Educational Work

Verify mathematical homework, physics formulas, or geometry exercises.

Daily Utility

Compute everyday calculations quickly without ads or paywalls.

Frequently Asked Questions

What is the Euclidean Algorithm?
An efficient method for computing the greatest common divisor of two integers by repeated division remainder steps.
How are GCD and LCM related?
For two numbers a and b, GCD(a,b) × LCM(a,b) = |a × b|.

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