GCF for 55 and 121

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 55 and 121?

Answer: GCF of 55 and 121 is 11

(Eleven)

Finding GCF for 55 and 121 using all factors (divisors) listing

The first method to find GCF for numbers 55 and 121 is to list all factors for both numbers and pick the highest common one:

All factors of 55: 1, 5, 11, 55

All factors of 121: 1, 11, 121

So the Greatest Common Factor for 55 and 121 is 11

Finding GCF for 55 and 121 by Prime Factorization

The second method to find GCF for numbers 55 and 121 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 55: 5, 11

All Prime Factors of 121: 11, 11

As we can see there is only one Prime Factor common to both numbers. It is 11

So 11 is the Greatest Common Factor of 55 and 121

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 55 and 121? (The answer is: 11). Select the first number (e.g. '55') and the second number (e.g. '121'). 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
401211
411211
421211
431211
4412111
451211
461211
471211
481211
491211
501211
511211
521211
531211
541211
5512111
561211
571211
581211
591211
601211
611211
621211
631211
641211
651211
6612111
671211
681211
691211

FAQ

What is the Greatest common Divisor of 55 and 121?

GCF of 55 and 121 is 11

See Also