What is the Greatest Common Factor of 78530 and 78535?

Greatest common factor (GCF) of 78530 and 78535 is 5.

GCF(78530,78535) = 5

We will now calculate the prime factors of 78530 and 78535, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78530 and 78535.

How to find the GCF of 78530 and 78535?

We will first find the prime factorization of 78530 and 78535. After we will calculate the factors of 78530 and 78535 and find the biggest common factor number .

Step-1: Prime Factorization of 78530

Prime factors of 78530 are 2, 5, 7853. Prime factorization of 78530 in exponential form is:

78530 = 2¹ × 5¹ × 7853¹

Step-2: Prime Factorization of 78535

Prime factors of 78535 are 5, 113, 139. Prime factorization of 78535 in exponential form is:

78535 = 5¹ × 113¹ × 139¹

Step-3: Factors of 78530

List of positive integer factors of 78530 that divides 78530 without a remainder.

1, 2, 5, 10, 7853, 15706, 39265

Step-4: Factors of 78535

List of positive integer factors of 78535 that divides 78530 without a remainder.

1, 5, 113, 139, 565, 695, 15707

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78530 and 78535. The biggest common factor number is the GCF number.
So the greatest common factor 78530 and 78535 is 5.

Also check out the Least Common Multiple of 78530 and 78535