What is the Greatest Common Factor of 26420 and 26440?

Greatest common factor (GCF) of 26420 and 26440 is 20.

GCF(26420,26440) = 20

We will now calculate the prime factors of 26420 and 26440, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 26420 and 26440.

How to find the GCF of 26420 and 26440?

We will first find the prime factorization of 26420 and 26440. After we will calculate the factors of 26420 and 26440 and find the biggest common factor number .

Step-1: Prime Factorization of 26420

Prime factors of 26420 are 2, 5, 1321. Prime factorization of 26420 in exponential form is:

26420 = 2² × 5¹ × 1321¹

Step-2: Prime Factorization of 26440

Prime factors of 26440 are 2, 5, 661. Prime factorization of 26440 in exponential form is:

26440 = 2³ × 5¹ × 661¹

Step-3: Factors of 26420

List of positive integer factors of 26420 that divides 26420 without a remainder.

1, 2, 4, 5, 10, 20, 1321, 2642, 5284, 6605, 13210

Step-4: Factors of 26440

List of positive integer factors of 26440 that divides 26420 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 26420 and 26440. The biggest common factor number is the GCF number.
So the greatest common factor 26420 and 26440 is 20.

Also check out the Least Common Multiple of 26420 and 26440