What is the Greatest Common Factor of 81195 and 81207?

Greatest common factor (GCF) of 81195 and 81207 is 3.

GCF(81195,81207) = 3

We will now calculate the prime factors of 81195 and 81207, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81195 and 81207.

How to find the GCF of 81195 and 81207?

We will first find the prime factorization of 81195 and 81207. After we will calculate the factors of 81195 and 81207 and find the biggest common factor number .

Step-1: Prime Factorization of 81195

Prime factors of 81195 are 3, 5, 5413. Prime factorization of 81195 in exponential form is:

81195 = 3¹ × 5¹ × 5413¹

Step-2: 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-3: Factors of 81195

List of positive integer factors of 81195 that divides 81195 without a remainder.

1, 3, 5, 15, 5413, 16239, 27065

Step-4: Factors of 81207

List of positive integer factors of 81207 that divides 81195 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81195 and 81207. The biggest common factor number is the GCF number.
So the greatest common factor 81195 and 81207 is 3.

Also check out the Least Common Multiple of 81195 and 81207