GCF for 12 and 86

What is the Greatest Common Factor of 12 and 86?

Answer: GCF of 12 and 86 is 2

(Two)

Finding GCF for 12 and 86 using all factors (divisors) listing

The first method to find GCF for numbers 12 and 86 is to list all factors for both numbers and pick the highest common one:

All factors of 12: 1, 2, 3, 4, 6, 12

All factors of 86: 1, 2, 43, 86

So the Greatest Common Factor for 12 and 86 is 2

Finding GCF for 12 and 86 by Prime Factorization

The second method to find GCF for numbers 12 and 86 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 12: 2, 2, 3

All Prime Factors of 86: 2, 43

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 12 and 86

GCF Table

Number 1Number 2GCF
1861
2862
3861
4862
5861
6862
7861
8862
9861
10862
11861
12862
13861
14862
15861
16862
17861
18862
19861
20862
21861
22862
23861
24862
25861
26862
27861
28862
29861
30862

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 12 and 86? (The answer is: 2). Select the first number (e.g. '12') and the second number (e.g. '86'). 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 12 and 86?

GCF of 12 and 86 is 2