What is the Greatest Common Factor of 65405 and 65409?

Greatest common factor (GCF) of 65405 and 65409 is 1.

GCF(65405,65409) = 1

We will now calculate the prime factors of 65405 and 65409, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65405 and 65409.

How to find the GCF of 65405 and 65409?

We will first find the prime factorization of 65405 and 65409. After we will calculate the factors of 65405 and 65409 and find the biggest common factor number .

Step-1: Prime Factorization of 65405

Prime factors of 65405 are 5, 103, 127. Prime factorization of 65405 in exponential form is:

65405 = 5¹ × 103¹ × 127¹

Step-2: Prime Factorization of 65409

Prime factors of 65409 are 3, 21803. Prime factorization of 65409 in exponential form is:

65409 = 3¹ × 21803¹

Step-3: Factors of 65405

List of positive integer factors of 65405 that divides 65405 without a remainder.

1, 5, 103, 127, 515, 635, 13081

Step-4: Factors of 65409

List of positive integer factors of 65409 that divides 65405 without a remainder.

1, 3, 21803

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65405 and 65409. The biggest common factor number is the GCF number.
So the greatest common factor 65405 and 65409 is 1.

Also check out the Least Common Multiple of 65405 and 65409