What is the Greatest Common Factor of 77287 and 77305?

Greatest common factor (GCF) of 77287 and 77305 is 1.

GCF(77287,77305) = 1

We will now calculate the prime factors of 77287 and 77305, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77287 and 77305.

How to find the GCF of 77287 and 77305?

We will first find the prime factorization of 77287 and 77305. After we will calculate the factors of 77287 and 77305 and find the biggest common factor number .

Step-1: Prime Factorization of 77287

Prime factors of 77287 are 7, 61, 181. Prime factorization of 77287 in exponential form is:

77287 = 7¹ × 61¹ × 181¹

Step-2: Prime Factorization of 77305

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

77305 = 5¹ × 15461¹

Step-3: Factors of 77287

List of positive integer factors of 77287 that divides 77287 without a remainder.

1, 7, 61, 181, 427, 1267, 11041

Step-4: Factors of 77305

List of positive integer factors of 77305 that divides 77287 without a remainder.

1, 5, 15461

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77287 and 77305. The biggest common factor number is the GCF number.
So the greatest common factor 77287 and 77305 is 1.

Also check out the Least Common Multiple of 77287 and 77305