GCF for 55 and 88

What is the Greatest Common Factor of 55 and 88?

Answer: GCF of 55 and 88 is 11

(Eleven)

Finding GCF for 55 and 88 using all factors (divisors) listing

The first method to find GCF for numbers 55 and 88 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 88: 1, 2, 4, 8, 11, 22, 44, 88

So the Greatest Common Factor for 55 and 88 is 11

Finding GCF for 55 and 88 by Prime Factorization

The second method to find GCF for numbers 55 and 88 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 88: 2, 2, 2, 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 88

GCF Table

Number 1Number 2GCF
40888
41881
42882
43881
4488
45881
46882
47881
4888
49881
50882
51881
52884
53881
54882
5588
56888
57881
58882
59881
60884
61881
62882
63881
6488
65881
6688
67881
68884
69881

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 55 and 88? (The answer is: 11). Select the first number (e.g. '55') and the second number (e.g. '88'). 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 55 and 88?

GCF of 55 and 88 is 11