What is the Greatest Common Factor of 81390 and 81395?

Greatest common factor (GCF) of 81390 and 81395 is 5.

GCF(81390,81395) = 5

We will now calculate the prime factors of 81390 and 81395, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81390 and 81395.

How to find the GCF of 81390 and 81395?

We will first find the prime factorization of 81390 and 81395. After we will calculate the factors of 81390 and 81395 and find the biggest common factor number .

Step-1: Prime Factorization of 81390

Prime factors of 81390 are 2, 3, 5, 2713. Prime factorization of 81390 in exponential form is:

81390 = 2¹ × 3¹ × 5¹ × 2713¹

Step-2: Prime Factorization of 81395

Prime factors of 81395 are 5, 73, 223. Prime factorization of 81395 in exponential form is:

81395 = 5¹ × 73¹ × 223¹

Step-3: Factors of 81390

List of positive integer factors of 81390 that divides 81390 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2713, 5426, 8139, 13565, 16278, 27130, 40695

Step-4: Factors of 81395

List of positive integer factors of 81395 that divides 81390 without a remainder.

1, 5, 73, 223, 365, 1115, 16279

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81390 and 81395. The biggest common factor number is the GCF number.
So the greatest common factor 81390 and 81395 is 5.

Also check out the Least Common Multiple of 81390 and 81395