GCF for 10 and 685

What is the Greatest Common Factor of 10 and 685?

Answer: GCF of 10 and 685 is 5

(Five)

Finding GCF for 10 and 685 using all factors (divisors) listing

The first method to find GCF for numbers 10 and 685 is to list all factors for both numbers and pick the highest common one:

All factors of 10: 1, 2, 5, 10

All factors of 685: 1, 5, 137, 685

So the Greatest Common Factor for 10 and 685 is 5

Finding GCF for 10 and 685 by Prime Factorization

The second method to find GCF for numbers 10 and 685 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 10: 2, 5

All Prime Factors of 685: 5, 137

As we can see there is only one Prime Factor common to both numbers. It is 5

So 5 is the Greatest Common Factor of 10 and 685

GCF Table

Number 1Number 2GCF
16851
26851
36851
46851
56855
66851
76851
86851
96851
106855
116851
126851
136851
146851
156855
166851
176851
186851
196851
206855
216851
226851
236851
246851
256855
266851
276851
286851
296851
306855

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 10 and 685? (The answer is: 5). Select the first number (e.g. '10') and the second number (e.g. '685'). 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 10 and 685?

GCF of 10 and 685 is 5