What is the Greatest Common Factor of 81782 and 81786?

Greatest common factor (GCF) of 81782 and 81786 is 2.

GCF(81782,81786) = 2

We will now calculate the prime factors of 81782 and 81786, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81782 and 81786.

How to find the GCF of 81782 and 81786?

We will first find the prime factorization of 81782 and 81786. After we will calculate the factors of 81782 and 81786 and find the biggest common factor number .

Step-1: Prime Factorization of 81782

Prime factors of 81782 are 2, 103, 397. Prime factorization of 81782 in exponential form is:

81782 = 2¹ × 103¹ × 397¹

Step-2: Prime Factorization of 81786

Prime factors of 81786 are 2, 3, 43, 317. Prime factorization of 81786 in exponential form is:

81786 = 2¹ × 3¹ × 43¹ × 317¹

Step-3: Factors of 81782

List of positive integer factors of 81782 that divides 81782 without a remainder.

1, 2, 103, 206, 397, 794, 40891

Step-4: Factors of 81786

List of positive integer factors of 81786 that divides 81782 without a remainder.

1, 2, 3, 6, 43, 86, 129, 258, 317, 634, 951, 1902, 13631, 27262, 40893

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81782 and 81786. The biggest common factor number is the GCF number.
So the greatest common factor 81782 and 81786 is 2.

Also check out the Least Common Multiple of 81782 and 81786