What is the Greatest Common Factor of 91491 and 91509?

Greatest common factor (GCF) of 91491 and 91509 is 3.

GCF(91491,91509) = 3

We will now calculate the prime factors of 91491 and 91509, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91491 and 91509.

How to find the GCF of 91491 and 91509?

We will first find the prime factorization of 91491 and 91509. After we will calculate the factors of 91491 and 91509 and find the biggest common factor number .

Step-1: Prime Factorization of 91491

Prime factors of 91491 are 3, 30497. Prime factorization of 91491 in exponential form is:

91491 = 3¹ × 30497¹

Step-2: Prime Factorization of 91509

Prime factors of 91509 are 3, 11, 47, 59. Prime factorization of 91509 in exponential form is:

91509 = 3¹ × 11¹ × 47¹ × 59¹

Step-3: Factors of 91491

List of positive integer factors of 91491 that divides 91491 without a remainder.

1, 3, 30497

Step-4: Factors of 91509

List of positive integer factors of 91509 that divides 91491 without a remainder.

1, 3, 11, 33, 47, 59, 141, 177, 517, 649, 1551, 1947, 2773, 8319, 30503

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91491 and 91509. The biggest common factor number is the GCF number.
So the greatest common factor 91491 and 91509 is 3.

Also check out the Least Common Multiple of 91491 and 91509