What is the Greatest Common Factor of 77803 and 77809?

Greatest common factor (GCF) of 77803 and 77809 is 1.

GCF(77803,77809) = 1

We will now calculate the prime factors of 77803 and 77809, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77803 and 77809.

How to find the GCF of 77803 and 77809?

We will first find the prime factorization of 77803 and 77809. After we will calculate the factors of 77803 and 77809 and find the biggest common factor number .

Step-1: Prime Factorization of 77803

Prime factors of 77803 are 11, 643. Prime factorization of 77803 in exponential form is:

77803 = 11² × 643¹

Step-2: Prime Factorization of 77809

Prime factors of 77809 are 17, 23, 199. Prime factorization of 77809 in exponential form is:

77809 = 17¹ × 23¹ × 199¹

Step-3: Factors of 77803

List of positive integer factors of 77803 that divides 77803 without a remainder.

1, 11, 121, 643, 7073

Step-4: Factors of 77809

List of positive integer factors of 77809 that divides 77803 without a remainder.

1, 17, 23, 199, 391, 3383, 4577

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77803 and 77809. The biggest common factor number is the GCF number.
So the greatest common factor 77803 and 77809 is 1.

Also check out the Least Common Multiple of 77803 and 77809