GCF for 84 and 99

What is the Greatest Common Factor of 84 and 99?

Answer: GCF of 84 and 99 is 3

(Three)

Finding GCF for 84 and 99 using all factors (divisors) listing

The first method to find GCF for numbers 84 and 99 is to list all factors for both numbers and pick the highest common one:

All factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

All factors of 99: 1, 3, 9, 11, 33, 99

So the Greatest Common Factor for 84 and 99 is 3

Finding GCF for 84 and 99 by Prime Factorization

The second method to find GCF for numbers 84 and 99 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 84: 2, 2, 3, 7

All Prime Factors of 99: 3, 3, 11

As we can see there is only one Prime Factor common to both numbers. It is 3

So 3 is the Greatest Common Factor of 84 and 99

GCF Table

Number 1Number 2GCF
69993
70991
71991
7299
7399
74991
75993
76991
779911
78993
79991
80991
81999
82991
83991
84993
85991
86991
87993
889911
89991
90999
91991
92991
93993
94991
95991
96993
97991
9899

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 84 and 99? (The answer is: 3). Select the first number (e.g. '84') and the second number (e.g. '99'). 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 84 and 99?

GCF of 84 and 99 is 3