What is the Greatest Common Factor of 81390 and 81404?

Greatest common factor (GCF) of 81390 and 81404 is 2.

GCF(81390,81404) = 2

We will now calculate the prime factors of 81390 and 81404, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81390 and 81404.

How to find the GCF of 81390 and 81404?

We will first find the prime factorization of 81390 and 81404. After we will calculate the factors of 81390 and 81404 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 81404

Prime factors of 81404 are 2, 47, 433. Prime factorization of 81404 in exponential form is:

81404 = 2² × 47¹ × 433¹

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 81404

List of positive integer factors of 81404 that divides 81390 without a remainder.

1, 2, 4, 47, 94, 188, 433, 866, 1732, 20351, 40702

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81390 and 81404. The biggest common factor number is the GCF number.
So the greatest common factor 81390 and 81404 is 2.

Also check out the Least Common Multiple of 81390 and 81404