GCF for 13 and 39

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 13 and 39?

Answer: GCF of 13 and 39 is 13

(Thirteen)

Finding GCF for 13 and 39 using all factors (divisors) listing

The first method to find GCF for numbers 13 and 39 is to list all factors for both numbers and pick the highest common one:

All factors of 13: 1, 13

All factors of 39: 1, 3, 13, 39

So the Greatest Common Factor for 13 and 39 is 13

Finding GCF for 13 and 39 by Prime Factorization

The second method to find GCF for numbers 13 and 39 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 13: 13

All Prime Factors of 39: 3, 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 39

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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 39? (The answer is: 13). Select the first number (e.g. '13') and the second number (e.g. '39'). 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
1391
2391
3393
4391
5391
6393
7391
8391
9393
10391
11391
12393
133913
14391
15393
16391
17391
18393
19391
20391
21393
22391
23391
24393
25391
263913
27393
28391
29391
30393

FAQ

What is the Greatest common Divisor of 13 and 39?

GCF of 13 and 39 is 13

See Also