Common Factor Calculator
Calculate common factors and greatest common factors (GCF) of multiple numbers instantly
Results
Input Numbers
24, 36, 48
Greatest Common Factor (GCF)
12
All Common Factors
1
2
3
4
6
12
Frequently Asked Questions
What are common factors?
Common factors are numbers that divide exactly into two or more numbers. They are factors that are shared by a given set of numbers.
What is the Greatest Common Factor (GCF)?
The Greatest Common Factor (GCF) is the largest number that is a factor of two or more numbers. It's also known as the Greatest Common Divisor (GCD).
How do I find common factors?
To find common factors: 1) List all factors of each number, 2) Identify the factors that appear in all lists. The GCF is the largest of these common factors.
What is the difference between factors and common factors?
Factors are numbers that divide exactly into a single number. Common factors are factors that are shared between two or more numbers.
Can 1 be a common factor?
Yes, 1 is always a common factor of any set of numbers because all numbers are divisible by 1.
What if my numbers have no common factors other than 1?
If the only common factor is 1, the numbers are called "coprime" or "relatively prime". The GCF in this case is 1.
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