What is the Greatest Common Factor of 86440 and 86455?

Greatest common factor (GCF) of 86440 and 86455 is 5.

GCF(86440,86455) = 5

We will now calculate the prime factors of 86440 and 86455, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 86440 and 86455.

How to find the GCF of 86440 and 86455?

We will first find the prime factorization of 86440 and 86455. After we will calculate the factors of 86440 and 86455 and find the biggest common factor number .

Step-1: Prime Factorization of 86440

Prime factors of 86440 are 2, 5, 2161. Prime factorization of 86440 in exponential form is:

86440 = 2³ × 5¹ × 2161¹

Step-2: Prime Factorization of 86455

Prime factors of 86455 are 5, 17291. Prime factorization of 86455 in exponential form is:

86455 = 5¹ × 17291¹

Step-3: Factors of 86440

List of positive integer factors of 86440 that divides 86440 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 2161, 4322, 8644, 10805, 17288, 21610, 43220

Step-4: Factors of 86455

List of positive integer factors of 86455 that divides 86440 without a remainder.

1, 5, 17291

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 86440 and 86455. The biggest common factor number is the GCF number.
So the greatest common factor 86440 and 86455 is 5.

Also check out the Least Common Multiple of 86440 and 86455