GCF for 10 and 660

What is the Greatest Common Factor of 10 and 660?

Answer: GCF of 10 and 660 is 10

(Ten)

Finding GCF for 10 and 660 using all factors (divisors) listing

The first method to find GCF for numbers 10 and 660 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 660: 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

So the Greatest Common Factor for 10 and 660 is 10

Finding GCF for 10 and 660 by Prime Factorization

The second method to find GCF for numbers 10 and 660 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 660: 2, 2, 3, 5, 11

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

Now we need to multiply them to find GCF: 2 × 5 = 10

GCF Table

Number 1Number 2GCF
16601
26602
36603
46604
56605
66606
76601
86604
96603
1066010
1166011
1266012
136601
146602
1566015
166604
176601
186606
196601
2066020
216603
2266022
236601
2466012
256605
266602
276603
286604
296601
3066030

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 660? (The answer is: 10). Select the first number (e.g. '10') and the second number (e.g. '660'). 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 660?

GCF of 10 and 660 is 10