What is the Greatest Common Factor of 81207 and 81222?

Greatest common factor (GCF) of 81207 and 81222 is 3.

GCF(81207,81222) = 3

We will now calculate the prime factors of 81207 and 81222, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81207 and 81222.

How to find the GCF of 81207 and 81222?

We will first find the prime factorization of 81207 and 81222. After we will calculate the factors of 81207 and 81222 and find the biggest common factor number .

Step-1: Prime Factorization of 81207

Prime factors of 81207 are 3, 7, 1289. Prime factorization of 81207 in exponential form is:

81207 = 3² × 7¹ × 1289¹

Step-2: 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-3: Factors of 81207

List of positive integer factors of 81207 that divides 81207 without a remainder.

1, 3, 7, 9, 21, 63, 1289, 3867, 9023, 11601, 27069

Step-4: Factors of 81222

List of positive integer factors of 81222 that divides 81207 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81207 and 81222. The biggest common factor number is the GCF number.
So the greatest common factor 81207 and 81222 is 3.

Also check out the Least Common Multiple of 81207 and 81222