What is the Greatest Common Factor of 26390 and 26405?

Greatest common factor (GCF) of 26390 and 26405 is 5.

GCF(26390,26405) = 5

We will now calculate the prime factors of 26390 and 26405, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 26390 and 26405.

How to find the GCF of 26390 and 26405?

We will first find the prime factorization of 26390 and 26405. After we will calculate the factors of 26390 and 26405 and find the biggest common factor number .

Step-1: Prime Factorization of 26390

Prime factors of 26390 are 2, 5, 7, 13, 29. Prime factorization of 26390 in exponential form is:

26390 = 2¹ × 5¹ × 7¹ × 13¹ × 29¹

Step-2: Prime Factorization of 26405

Prime factors of 26405 are 5, 5281. Prime factorization of 26405 in exponential form is:

26405 = 5¹ × 5281¹

Step-3: Factors of 26390

List of positive integer factors of 26390 that divides 26390 without a remainder.

1, 2, 5, 7, 10, 13, 14, 26, 29, 35, 58, 65, 70, 91, 130, 145, 182, 203, 290, 377, 406, 455, 754, 910, 1015, 1885, 2030, 2639, 3770, 5278, 13195

Step-4: Factors of 26405

List of positive integer factors of 26405 that divides 26390 without a remainder.

1, 5, 5281

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 26390 and 26405. The biggest common factor number is the GCF number.
So the greatest common factor 26390 and 26405 is 5.

Also check out the Least Common Multiple of 26390 and 26405