What is the Greatest Common Factor of 78257 and 78275?

Greatest common factor (GCF) of 78257 and 78275 is 1.

GCF(78257,78275) = 1

We will now calculate the prime factors of 78257 and 78275, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78257 and 78275.

How to find the GCF of 78257 and 78275?

We will first find the prime factorization of 78257 and 78275. After we will calculate the factors of 78257 and 78275 and find the biggest common factor number .

Step-1: Prime Factorization of 78257

Prime factors of 78257 are 139, 563. Prime factorization of 78257 in exponential form is:

78257 = 139¹ × 563¹

Step-2: Prime Factorization of 78275

Prime factors of 78275 are 5, 31, 101. Prime factorization of 78275 in exponential form is:

78275 = 5² × 31¹ × 101¹

Step-3: Factors of 78257

List of positive integer factors of 78257 that divides 78257 without a remainder.

1, 139, 563

Step-4: Factors of 78275

List of positive integer factors of 78275 that divides 78257 without a remainder.

1, 5, 25, 31, 101, 155, 505, 775, 2525, 3131, 15655

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78257 and 78275. The biggest common factor number is the GCF number.
So the greatest common factor 78257 and 78275 is 1.

Also check out the Least Common Multiple of 78257 and 78275