What is the Greatest Common Factor of 81665 and 81681?

Greatest common factor (GCF) of 81665 and 81681 is 1.

GCF(81665,81681) = 1

We will now calculate the prime factors of 81665 and 81681, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81665 and 81681.

How to find the GCF of 81665 and 81681?

We will first find the prime factorization of 81665 and 81681. After we will calculate the factors of 81665 and 81681 and find the biggest common factor number .

Step-1: Prime Factorization of 81665

Prime factors of 81665 are 5, 16333. Prime factorization of 81665 in exponential form is:

81665 = 5¹ × 16333¹

Step-2: Prime Factorization of 81681

Prime factors of 81681 are 3, 19, 1433. Prime factorization of 81681 in exponential form is:

81681 = 3¹ × 19¹ × 1433¹

Step-3: Factors of 81665

List of positive integer factors of 81665 that divides 81665 without a remainder.

1, 5, 16333

Step-4: Factors of 81681

List of positive integer factors of 81681 that divides 81665 without a remainder.

1, 3, 19, 57, 1433, 4299, 27227

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81665 and 81681. The biggest common factor number is the GCF number.
So the greatest common factor 81665 and 81681 is 1.

Also check out the Least Common Multiple of 81665 and 81681