GCF for 2 and 82

What is the Greatest Common Factor of 2 and 82?

Answer: GCF of 2 and 82 is 2

(Two)

Finding GCF for 2 and 82 using all factors (divisors) listing

The first method to find GCF for numbers 2 and 82 is to list all factors for both numbers and pick the highest common one:

All factors of 2: 1, 2

All factors of 82: 1, 2, 41, 82

So the Greatest Common Factor for 2 and 82 is 2

Finding GCF for 2 and 82 by Prime Factorization

The second method to find GCF for numbers 2 and 82 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 2: 2

All Prime Factors of 82: 2, 41

As we can see there is only one Prime Factor common to both numbers. It is 2

So 2 is the Greatest Common Factor of 2 and 82

Related Calculations

GCF Table

Number 1Number 2GCF
1821
2822
3821
4822
5821
6822
7821
8822
9821
10822
11821
12822
13821
14822
15821
16822
17821
18822
19821
20822
21821
22822
23821
24822
25821
26822
27821
28822
29821
30822

About "Greatest Common Factor" Calculator

This calculator will help you find the greatest common factor (GCF) of two numbers. For example, it can help you find out what is the Greatest Common Factor of 2 and 82? (The answer is: 2). Select the first number (e.g. '2') and the second number (e.g. '82'). After that hit the 'Calculate' button.
Greatest Common Factor (GCF) also known as the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) - it is the largest positive integer that divides each of the integers with zero remainder

FAQ

What is the Greatest Common Factor of 2 and 82?

GCF of 2 and 82 is 2