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GCF for 20 and 27

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest Common Divisor of 20 and 27?

Answer

GCF of 20 and 27 is 1

(One)

Finding GCF for 20 and 27 using all factors (divisors) listing

The first method to find GCF for numbers 20 and 27 is to list all factors for both numbers and pick the highest common one:

All factors of 20: 1, 2, 4, 5, 10, 20

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

So the Greatest Common Factor for 20 and 27 is 1

Finding GCF for 20 and 27 by Prime Factorization

The numbers 20 and 27 have no common prime factors, which means they are coprime (relatively prime). Therefore, GCF = 1.

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What is the GCF of 20 and 27. Find the GCF (GCD) of 20 and 27 - the biggest number that can divide two integers.
https://calculat.io/en/number/greatest-common-factor-of/20--27/generated.jpgCopy

GCF Table

Number 1 Number 2 GCF
5 27 1
6 27 3
7 27 1
8 27 1
9 27 9
10 27 1
11 27 1
12 27 3
13 27 1
14 27 1
15 27 3
16 27 1
17 27 1
18 27 9
19 27 1
20 27 1
21 27 3
22 27 1
23 27 1
24 27 3
25 27 1
26 27 1
27 27 27
28 27 1
29 27 1
30 27 3
31 27 1
32 27 1
33 27 3
34 27 1

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 20 and 27? (The answer is: 1). Select the first number (e.g. '20') and the second number (e.g. '27'). 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

FAQ

What is the Greatest Common Divisor of 20 and 27?
GCF of 20 and 27 is 1

How to find the GCF of 20 and 27?
You can find the GCF of 20 and 27 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 20 and 27 is 1.

Are 20 and 27 coprime?
Yes, 20 and 27 are coprime (relatively prime) because their Greatest Common Factor is 1.

See Also