What is the Greatest Common Factor of 91385 and 91390?

Greatest common factor (GCF) of 91385 and 91390 is 5.

GCF(91385,91390) = 5

We will now calculate the prime factors of 91385 and 91390, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91385 and 91390.

How to find the GCF of 91385 and 91390?

We will first find the prime factorization of 91385 and 91390. After we will calculate the factors of 91385 and 91390 and find the biggest common factor number .

Step-1: Prime Factorization of 91385

Prime factors of 91385 are 5, 7, 373. Prime factorization of 91385 in exponential form is:

91385 = 5¹ × 7² × 373¹

Step-2: Prime Factorization of 91390

Prime factors of 91390 are 2, 5, 13, 19, 37. Prime factorization of 91390 in exponential form is:

91390 = 2¹ × 5¹ × 13¹ × 19¹ × 37¹

Step-3: Factors of 91385

List of positive integer factors of 91385 that divides 91385 without a remainder.

1, 5, 7, 35, 49, 245, 373, 1865, 2611, 13055, 18277

Step-4: Factors of 91390

List of positive integer factors of 91390 that divides 91385 without a remainder.

1, 2, 5, 10, 13, 19, 26, 37, 38, 65, 74, 95, 130, 185, 190, 247, 370, 481, 494, 703, 962, 1235, 1406, 2405, 2470, 3515, 4810, 7030, 9139, 18278, 45695

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91385 and 91390. The biggest common factor number is the GCF number.
So the greatest common factor 91385 and 91390 is 5.

Also check out the Least Common Multiple of 91385 and 91390