What is the Greatest Common Factor of 91521 and 91530?

Greatest common factor (GCF) of 91521 and 91530 is 9.

GCF(91521,91530) = 9

We will now calculate the prime factors of 91521 and 91530, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91521 and 91530.

How to find the GCF of 91521 and 91530?

We will first find the prime factorization of 91521 and 91530. After we will calculate the factors of 91521 and 91530 and find the biggest common factor number .

Step-1: Prime Factorization of 91521

Prime factors of 91521 are 3, 10169. Prime factorization of 91521 in exponential form is:

91521 = 3² × 10169¹

Step-2: Prime Factorization of 91530

Prime factors of 91530 are 2, 3, 5, 113. Prime factorization of 91530 in exponential form is:

91530 = 2¹ × 3⁴ × 5¹ × 113¹

Step-3: Factors of 91521

List of positive integer factors of 91521 that divides 91521 without a remainder.

1, 3, 9, 10169, 30507

Step-4: Factors of 91530

List of positive integer factors of 91530 that divides 91521 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 113, 135, 162, 226, 270, 339, 405, 565, 678, 810, 1017, 1130, 1695, 2034, 3051, 3390, 5085, 6102, 9153, 10170, 15255, 18306, 30510, 45765

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91521 and 91530. The biggest common factor number is the GCF number.
So the greatest common factor 91521 and 91530 is 9.

Also check out the Least Common Multiple of 91521 and 91530