What is the Greatest Common Factor of 81685 and 81704?

Greatest common factor (GCF) of 81685 and 81704 is 1.

GCF(81685,81704) = 1

We will now calculate the prime factors of 81685 and 81704, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81685 and 81704.

How to find the GCF of 81685 and 81704?

We will first find the prime factorization of 81685 and 81704. After we will calculate the factors of 81685 and 81704 and find the biggest common factor number .

Step-1: Prime Factorization of 81685

Prime factors of 81685 are 5, 17, 31. Prime factorization of 81685 in exponential form is:

81685 = 5¹ × 17¹ × 31²

Step-2: Prime Factorization of 81704

Prime factors of 81704 are 2, 7, 1459. Prime factorization of 81704 in exponential form is:

81704 = 2³ × 7¹ × 1459¹

Step-3: Factors of 81685

List of positive integer factors of 81685 that divides 81685 without a remainder.

1, 5, 17, 31, 85, 155, 527, 961, 2635, 4805, 16337

Step-4: Factors of 81704

List of positive integer factors of 81704 that divides 81685 without a remainder.

1, 2, 4, 7, 8, 14, 28, 56, 1459, 2918, 5836, 10213, 11672, 20426, 40852

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81685 and 81704. The biggest common factor number is the GCF number.
So the greatest common factor 81685 and 81704 is 1.

Also check out the Least Common Multiple of 81685 and 81704