GCF for 27 and 75

What is the Greatest common Divisor of 27 and 75?

Answer: GCF of 27 and 75 is 3

(Three)

Finding GCF for 27 and 75 using all factors (divisors) listing

The first method to find GCF for numbers 27 and 75 is to list all factors for both numbers and pick the highest common one:

All factors of 27: 1, 3, 9, 27

All factors of 75: 1, 3, 5, 15, 25, 75

So the Greatest Common Factor for 27 and 75 is 3

Finding GCF for 27 and 75 by Prime Factorization

The second method to find GCF for numbers 27 and 75 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 27: 3, 3, 3

All Prime Factors of 75: 3, 5, 5

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 27 and 75

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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 27 and 75? (The answer is: 3). Select the first number (e.g. '27') and the second number (e.g. '75'). 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

GCF Table

Number 1Number 2GCF
12753
13751
14751
1575
1675
17751
18753
19751
2075
21753
22751
23751
24753
2575
26751
2775
28751
29751
3075
31751
32751
33753
34751
3575
36753
37751
38751
39753
40755
41751

FAQ

What is the Greatest common Divisor of 27 and 75?

GCF of 27 and 75 is 3