What is the Greatest Common Factor of 91443 and 91455?

Greatest common factor (GCF) of 91443 and 91455 is 3.

GCF(91443,91455) = 3

We will now calculate the prime factors of 91443 and 91455, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91443 and 91455.

How to find the GCF of 91443 and 91455?

We will first find the prime factorization of 91443 and 91455. After we will calculate the factors of 91443 and 91455 and find the biggest common factor number .

Step-1: Prime Factorization of 91443

Prime factors of 91443 are 3, 11, 17, 163. Prime factorization of 91443 in exponential form is:

91443 = 3¹ × 11¹ × 17¹ × 163¹

Step-2: Prime Factorization of 91455

Prime factors of 91455 are 3, 5, 7, 13, 67. Prime factorization of 91455 in exponential form is:

91455 = 3¹ × 5¹ × 7¹ × 13¹ × 67¹

Step-3: Factors of 91443

List of positive integer factors of 91443 that divides 91443 without a remainder.

1, 3, 11, 17, 33, 51, 163, 187, 489, 561, 1793, 2771, 5379, 8313, 30481

Step-4: Factors of 91455

List of positive integer factors of 91455 that divides 91443 without a remainder.

1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 67, 91, 105, 195, 201, 273, 335, 455, 469, 871, 1005, 1365, 1407, 2345, 2613, 4355, 6097, 7035, 13065, 18291, 30485

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91443 and 91455. The biggest common factor number is the GCF number.
So the greatest common factor 91443 and 91455 is 3.

Also check out the Least Common Multiple of 91443 and 91455