GCF for 660 and 495

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 660 and 495?

Answer: GCF of 660 and 495 is 165

(One hundred sixty-five)

Finding GCF for 660 and 495 using all factors (divisors) listing

The first method to find GCF for numbers 660 and 495 is to list all factors for both numbers and pick the highest common one:

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

All factors of 495: 1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495

So the Greatest Common Factor for 660 and 495 is 165

Finding GCF for 660 and 495 by Prime Factorization

The second method to find GCF for numbers 660 and 495 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 660: 2, 2, 3, 5, 11

All Prime Factors of 495: 3, 3, 5, 11

As we can see there are Prime Factors common to both numbers: 3, 5, 11

Now we need to multiply them to find GCF: 3 × 5 × 11 = 165

See Also

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 660 and 495? (The answer is: 165). Select the first number (e.g. '660') and the second number (e.g. '495'). 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
64549515
6464951
6474951
6484959
64949511
6504955
6514953
6524951
6534951
6544953
6554955
6564951
6574959
6584951
6594951
660495165
6614951
6624951
6634953
6644951
6654955
6664959
6674951
6684951
6694953
6704955
67149511
6724953
6734951
6744951

FAQ

What is the Greatest common Divisor of 660 and 495?

GCF of 660 and 495 is 165

See Also