What is the Greatest Common Factor of 78265 and 78278?

Greatest common factor (GCF) of 78265 and 78278 is 1.

GCF(78265,78278) = 1

We will now calculate the prime factors of 78265 and 78278, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78265 and 78278.

How to find the GCF of 78265 and 78278?

We will first find the prime factorization of 78265 and 78278. After we will calculate the factors of 78265 and 78278 and find the biggest common factor number .

Step-1: Prime Factorization of 78265

Prime factors of 78265 are 5, 11, 1423. Prime factorization of 78265 in exponential form is:

78265 = 5¹ × 11¹ × 1423¹

Step-2: Prime Factorization of 78278

Prime factors of 78278 are 2, 39139. Prime factorization of 78278 in exponential form is:

78278 = 2¹ × 39139¹

Step-3: Factors of 78265

List of positive integer factors of 78265 that divides 78265 without a remainder.

1, 5, 11, 55, 1423, 7115, 15653

Step-4: Factors of 78278

List of positive integer factors of 78278 that divides 78265 without a remainder.

1, 2, 39139

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78265 and 78278. The biggest common factor number is the GCF number.
So the greatest common factor 78265 and 78278 is 1.

Also check out the Least Common Multiple of 78265 and 78278