GCF for 13 and 26

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 13 and 26?

Answer: GCF of 13 and 26 is 13

(Thirteen)

Finding GCF for 13 and 26 using all factors (divisors) listing

The first method to find GCF for numbers 13 and 26 is to list all factors for both numbers and pick the highest common one:

All factors of 13: 1, 13

All factors of 26: 1, 2, 13, 26

So the Greatest Common Factor for 13 and 26 is 13

Finding GCF for 13 and 26 by Prime Factorization

The second method to find GCF for numbers 13 and 26 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 13: 13

All Prime Factors of 26: 2, 13

As we can see there is only one Prime Factor common to both numbers. It is 13

So 13 is the Greatest Common Factor of 13 and 26

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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 Divisor of 13 and 26? (The answer is: 13). Select the first number (e.g. '13') and the second number (e.g. '26'). 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

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

GCF Table

Number 1Number 2GCF
1261
2262
3261
4262
5261
6262
7261
8262
9261
10262
11261
12262
132613
14262
15261
16262
17261
18262
19261
20262
21261
22262
23261
24262
25261
262626
27261
28262
29261
30262

FAQ

What is the Greatest common Divisor of 13 and 26?

GCF of 13 and 26 is 13

See Also