GCF for 30 and 385

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 30 and 385?

Answer: GCF of 30 and 385 is 5

(Five)

Finding GCF for 30 and 385 using all factors (divisors) listing

The first method to find GCF for numbers 30 and 385 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 385: 1, 5, 7, 11, 35, 55, 77, 385

So the Greatest Common Factor for 30 and 385 is 5

Finding GCF for 30 and 385 by Prime Factorization

The second method to find GCF for numbers 30 and 385 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 385: 5, 7, 11

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 385

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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 30 and 385? (The answer is: 5). Select the first number (e.g. '30') and the second number (e.g. '385'). 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
153855
163851
173851
183851
193851
203855
213857
2238511
233851
243851
253855
263851
273851
283857
293851
303855
313851
323851
3338511
343851
3538535
363851
373851
383851
393851
403855
413851
423857
433851
4438511

FAQ

What is the Greatest common Divisor of 30 and 385?

GCF of 30 and 385 is 5

See Also