GCF for 13 and 65

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 13 and 65?

Answer: GCF of 13 and 65 is 13

(Thirteen)

Finding GCF for 13 and 65 using all factors (divisors) listing

The first method to find GCF for numbers 13 and 65 is to list all factors for both numbers and pick the highest common one:

All factors of 13: 1, 13

All factors of 65: 1, 5, 13, 65

So the Greatest Common Factor for 13 and 65 is 13

Finding GCF for 13 and 65 by Prime Factorization

The second method to find GCF for numbers 13 and 65 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 13: 13

All Prime Factors of 65: 5, 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 65

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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 65? (The answer is: 13). Select the first number (e.g. '13') and the second number (e.g. '65'). 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
1651
2651
3651
4651
5655
6651
7651
8651
9651
10655
11651
12651
136513
14651
15655
16651
17651
18651
19651
20655
21651
22651
23651
24651
25655
266513
27651
28651
29651
30655

FAQ

What is the Greatest common Divisor of 13 and 65?

GCF of 13 and 65 is 13

See Also