What is the Greatest Common Factor of 81243 and 81262?

Greatest common factor (GCF) of 81243 and 81262 is 1.

GCF(81243,81262) = 1

We will now calculate the prime factors of 81243 and 81262, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81243 and 81262.

How to find the GCF of 81243 and 81262?

We will first find the prime factorization of 81243 and 81262. After we will calculate the factors of 81243 and 81262 and find the biggest common factor number .

Step-1: Prime Factorization of 81243

Prime factors of 81243 are 3, 17, 59. Prime factorization of 81243 in exponential form is:

81243 = 3⁴ × 17¹ × 59¹

Step-2: Prime Factorization of 81262

Prime factors of 81262 are 2, 41, 991. Prime factorization of 81262 in exponential form is:

81262 = 2¹ × 41¹ × 991¹

Step-3: Factors of 81243

List of positive integer factors of 81243 that divides 81243 without a remainder.

1, 3, 9, 17, 27, 51, 59, 81, 153, 177, 459, 531, 1003, 1377, 1593, 3009, 4779, 9027, 27081

Step-4: Factors of 81262

List of positive integer factors of 81262 that divides 81243 without a remainder.

1, 2, 41, 82, 991, 1982, 40631

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81243 and 81262. The biggest common factor number is the GCF number.
So the greatest common factor 81243 and 81262 is 1.

Also check out the Least Common Multiple of 81243 and 81262