What is the Greatest Common Factor of 20775 and 20779?

Greatest common factor (GCF) of 20775 and 20779 is 1.

GCF(20775,20779) = 1

We will now calculate the prime factors of 20775 and 20779, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20775 and 20779.

How to find the GCF of 20775 and 20779?

We will first find the prime factorization of 20775 and 20779. After we will calculate the factors of 20775 and 20779 and find the biggest common factor number .

Step-1: Prime Factorization of 20775

Prime factors of 20775 are 3, 5, 277. Prime factorization of 20775 in exponential form is:

20775 = 3¹ × 5² × 277¹

Step-2: Prime Factorization of 20779

Prime factors of 20779 are 11, 1889. Prime factorization of 20779 in exponential form is:

20779 = 11¹ × 1889¹

Step-3: Factors of 20775

List of positive integer factors of 20775 that divides 20775 without a remainder.

1, 3, 5, 15, 25, 75, 277, 831, 1385, 4155, 6925

Step-4: Factors of 20779

List of positive integer factors of 20779 that divides 20775 without a remainder.

1, 11, 1889

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20775 and 20779. The biggest common factor number is the GCF number.
So the greatest common factor 20775 and 20779 is 1.

Also check out the Least Common Multiple of 20775 and 20779