What is the Greatest Common Factor of 81222 and 81238?

Greatest common factor (GCF) of 81222 and 81238 is 2.

GCF(81222,81238) = 2

We will now calculate the prime factors of 81222 and 81238, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81222 and 81238.

How to find the GCF of 81222 and 81238?

We will first find the prime factorization of 81222 and 81238. After we will calculate the factors of 81222 and 81238 and find the biggest common factor number .

Step-1: Prime Factorization of 81222

Prime factors of 81222 are 2, 3, 13537. Prime factorization of 81222 in exponential form is:

81222 = 2¹ × 3¹ × 13537¹

Step-2: Prime Factorization of 81238

Prime factors of 81238 are 2, 151, 269. Prime factorization of 81238 in exponential form is:

81238 = 2¹ × 151¹ × 269¹

Step-3: Factors of 81222

List of positive integer factors of 81222 that divides 81222 without a remainder.

1, 2, 3, 6, 13537, 27074, 40611

Step-4: Factors of 81238

List of positive integer factors of 81238 that divides 81222 without a remainder.

1, 2, 151, 269, 302, 538, 40619

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81222 and 81238. The biggest common factor number is the GCF number.
So the greatest common factor 81222 and 81238 is 2.

Also check out the Least Common Multiple of 81222 and 81238