GCF for 30 and 570

What is the Greatest Common Factor of 30 and 570?

Answer: GCF of 30 and 570 is 30

(Thirty)

Finding GCF for 30 and 570 using all factors (divisors) listing

The first method to find GCF for numbers 30 and 570 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 570: 1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570

So the Greatest Common Factor for 30 and 570 is 30

Finding GCF for 30 and 570 by Prime Factorization

The second method to find GCF for numbers 30 and 570 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 570: 2, 3, 5, 19

As we can see there are Prime Factors common to both numbers: 2, 3, 5

Now we need to multiply them to find GCF: 2 × 3 × 5 = 30

GCF Table

Number 1Number 2GCF
1557015
165702
175701
185706
1957019
2057010
215703
225702
235701
245706
255705
265702
275703
285702
295701
3057030
315701
325702
335703
345702
355705
365706
375701
3857038
395703
4057010
415701
425706
435701
445702

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 570? (The answer is: 30). Select the first number (e.g. '30') and the second number (e.g. '570'). 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 570?

GCF of 30 and 570 is 30