What is the Greatest Common Factor of 80391 and 80405?

Greatest common factor (GCF) of 80391 and 80405 is 1.

GCF(80391,80405) = 1

We will now calculate the prime factors of 80391 and 80405, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 80391 and 80405.

How to find the GCF of 80391 and 80405?

We will first find the prime factorization of 80391 and 80405. After we will calculate the factors of 80391 and 80405 and find the biggest common factor number .

Step-1: Prime Factorization of 80391

Prime factors of 80391 are 3, 127, 211. Prime factorization of 80391 in exponential form is:

80391 = 3¹ × 127¹ × 211¹

Step-2: Prime Factorization of 80405

Prime factors of 80405 are 5, 13, 1237. Prime factorization of 80405 in exponential form is:

80405 = 5¹ × 13¹ × 1237¹

Step-3: Factors of 80391

List of positive integer factors of 80391 that divides 80391 without a remainder.

1, 3, 127, 211, 381, 633, 26797

Step-4: Factors of 80405

List of positive integer factors of 80405 that divides 80391 without a remainder.

1, 5, 13, 65, 1237, 6185, 16081

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 80391 and 80405. The biggest common factor number is the GCF number.
So the greatest common factor 80391 and 80405 is 1.

Also check out the Least Common Multiple of 80391 and 80405