What is the Greatest Common Factor of 77305 and 77309?

Greatest common factor (GCF) of 77305 and 77309 is 1.

GCF(77305,77309) = 1

We will now calculate the prime factors of 77305 and 77309, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77305 and 77309.

How to find the GCF of 77305 and 77309?

We will first find the prime factorization of 77305 and 77309. After we will calculate the factors of 77305 and 77309 and find the biggest common factor number .

Step-1: Prime Factorization of 77305

Prime factors of 77305 are 5, 15461. Prime factorization of 77305 in exponential form is:

77305 = 5¹ × 15461¹

Step-2: Prime Factorization of 77309

Prime factors of 77309 are 97, 797. Prime factorization of 77309 in exponential form is:

77309 = 97¹ × 797¹

Step-3: Factors of 77305

List of positive integer factors of 77305 that divides 77305 without a remainder.

1, 5, 15461

Step-4: Factors of 77309

List of positive integer factors of 77309 that divides 77305 without a remainder.

1, 97, 797

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77305 and 77309. The biggest common factor number is the GCF number.
So the greatest common factor 77305 and 77309 is 1.

Also check out the Least Common Multiple of 77305 and 77309