GCF for 30 and 635

What is the Greatest Common Factor of 30 and 635?

Answer: GCF of 30 and 635 is 5

(Five)

Finding GCF for 30 and 635 using all factors (divisors) listing

The first method to find GCF for numbers 30 and 635 is to list all factors for both numbers and pick the highest common one:

All factors of 30: 1, 2, 3, 5, 6, 10, 15, 30

All factors of 635: 1, 5, 127, 635

So the Greatest Common Factor for 30 and 635 is 5

Finding GCF for 30 and 635 by Prime Factorization

The second method to find GCF for numbers 30 and 635 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 30: 2, 3, 5

All Prime Factors of 635: 5, 127

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 30 and 635

GCF Table

Number 1Number 2GCF
156355
166351
176351
186351
196351
206355
216351
226351
236351
246351
256355
266351
276351
286351
296351
306355
316351
326351
336351
346351
356355
366351
376351
386351
396351
406355
416351
426351
436351
446351

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 30 and 635? (The answer is: 5). Select the first number (e.g. '30') and the second number (e.g. '635'). 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 30 and 635?

GCF of 30 and 635 is 5