What is the Greatest Common Factor of 81625 and 81641?

Greatest common factor (GCF) of 81625 and 81641 is 1.

GCF(81625,81641) = 1

We will now calculate the prime factors of 81625 and 81641, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81625 and 81641.

How to find the GCF of 81625 and 81641?

We will first find the prime factorization of 81625 and 81641. After we will calculate the factors of 81625 and 81641 and find the biggest common factor number .

Step-1: Prime Factorization of 81625

Prime factors of 81625 are 5, 653. Prime factorization of 81625 in exponential form is:

81625 = 5³ × 653¹

Step-2: Prime Factorization of 81641

Prime factors of 81641 are 7, 107, 109. Prime factorization of 81641 in exponential form is:

81641 = 7¹ × 107¹ × 109¹

Step-3: Factors of 81625

List of positive integer factors of 81625 that divides 81625 without a remainder.

1, 5, 25, 125, 653, 3265, 16325

Step-4: Factors of 81641

List of positive integer factors of 81641 that divides 81625 without a remainder.

1, 7, 107, 109, 749, 763, 11663

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81625 and 81641. The biggest common factor number is the GCF number.
So the greatest common factor 81625 and 81641 is 1.

Also check out the Least Common Multiple of 81625 and 81641