GCF Calculator
Find the Greatest Common Factor (GCD) of numbers
Enter 2 or more positive integers separated by commas
Using Prime Factorization & Euclidean Algorithm methods
What is the Greatest Common Factor (GCF)?
The Greatest Common Factor (GCF), also known as the Greatest Common Divisor (GCD), is the largest number that divides two or more integers without leaving a remainder. Finding the GCF is useful in simplifying fractions, factoring algebraic expressions, and solving real-life problems. For example, the GCF of 48 and 64 is 16 because 16 is the largest number that divides both exactly.
Why Use a GCF Calculator?
Calculating the GCF manually can be time-consuming, especially for large numbers or multiple inputs. This online GCF calculator helps you quickly find the GCF of any set of numbers, shows step-by-step calculations, and even demonstrates the relationship between GCF and LCM.
Example: GCF of 48, 64, 80 = 16
How This GCF Calculator Works
- Accepts multiple numbers as input (comma-separated).
- Performs prime factorization for each number to identify common factors.
- Calculates the GCF by taking the minimum powers of common prime factors.
- Optionally uses the Euclidean Algorithm for verification (for 2 numbers).
- Shows all common divisors and verifies the GCF × LCM = Product relationship.
- Provides step-by-step explanations for better understanding.
Real-Life Applications of GCF
Fractions
Simplify fractions by dividing numerator and denominator by GCF
Algebra
Factor expressions using common factors
Real-Life Problems
Divide items into equal groups or packages efficiently
Understanding the Greatest Common Factor is essential for mathematics, problem-solving, and practical applications like distribution, scaling, and optimization. Use this online GCF calculator to quickly find the GCF of any numbers, check all common divisors, and learn the step-by-step calculations.
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