GCF for 66 and 242

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 66 and 242?

Answer: GCF of 66 and 242 is 22

(Twenty-two)

Finding GCF for 66 and 242 using all factors (divisors) listing

The first method to find GCF for numbers 66 and 242 is to list all factors for both numbers and pick the highest common one:

All factors of 66: 1, 2, 3, 6, 11, 22, 33, 66

All factors of 242: 1, 2, 11, 22, 121, 242

So the Greatest Common Factor for 66 and 242 is 22

Finding GCF for 66 and 242 by Prime Factorization

The second method to find GCF for numbers 66 and 242 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 66: 2, 3, 11

All Prime Factors of 242: 2, 11, 11

As we can see there are Prime Factors common to both numbers: 2, 11

Now we need to multiply them to find GCF: 2 × 11 = 22

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 66 and 242? (The answer is: 22). Select the first number (e.g. '66') and the second number (e.g. '242'). 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
512421
522422
532421
542422
5524211
562422
572421
582422
592421
602422
612421
622422
632421
642422
652421
6624222
672421
682422
692421
702422
712421
722422
732421
742422
752421
762422
7724211
782422
792421
802422

FAQ

What is the Greatest common Divisor of 66 and 242?

GCF of 66 and 242 is 22

See Also