GCF for 30 and 480

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest Common Divisor of 30 and 480?

Answer

GCF of 30 and 480 is 30

(Thirty)

Finding GCF for 30 and 480 using all factors (divisors) listing

The first method to find GCF for numbers 30 and 480 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 480: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480

So the Greatest Common Factor for 30 and 480 is 30

Finding GCF for 30 and 480 by Prime Factorization

The second method to find GCF for numbers 30 and 480 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 480: 2, 2, 2, 2, 2, 3, 5

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

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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 480? (The answer is: 30). Select the first number (e.g. '30') and the second number (e.g. '480'). 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
1548015
1648016
174801
184806
194801
2048020
214803
224802
234801
2448024
254805
264802
274803
284804
294801
3048030
314801
3248032
334803
344802
354805
3648012
374801
384802
394803
4048040
414801
424806
434801
444804

FAQ

What is the Greatest Common Divisor of 30 and 480?

GCF of 30 and 480 is 30

How to find the GCF of 30 and 480?

You can find the GCF of 30 and 480 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 30 and 480 is 30.

See Also