What is the Greatest Common Factor of 91590 and 91605?

Greatest common factor (GCF) of 91590 and 91605 is 15.

GCF(91590,91605) = 15

We will now calculate the prime factors of 91590 and 91605, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91590 and 91605.

How to find the GCF of 91590 and 91605?

We will first find the prime factorization of 91590 and 91605. After we will calculate the factors of 91590 and 91605 and find the biggest common factor number .

Step-1: Prime Factorization of 91590

Prime factors of 91590 are 2, 3, 5, 43, 71. Prime factorization of 91590 in exponential form is:

91590 = 2¹ × 3¹ × 5¹ × 43¹ × 71¹

Step-2: Prime Factorization of 91605

Prime factors of 91605 are 3, 5, 31, 197. Prime factorization of 91605 in exponential form is:

91605 = 3¹ × 5¹ × 31¹ × 197¹

Step-3: Factors of 91590

List of positive integer factors of 91590 that divides 91590 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 43, 71, 86, 129, 142, 213, 215, 258, 355, 426, 430, 645, 710, 1065, 1290, 2130, 3053, 6106, 9159, 15265, 18318, 30530, 45795

Step-4: Factors of 91605

List of positive integer factors of 91605 that divides 91590 without a remainder.

1, 3, 5, 15, 31, 93, 155, 197, 465, 591, 985, 2955, 6107, 18321, 30535

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91590 and 91605. The biggest common factor number is the GCF number.
So the greatest common factor 91590 and 91605 is 15.

Also check out the Least Common Multiple of 91590 and 91605