What is the Greatest Common Factor of 86421 and 86440?

Greatest common factor (GCF) of 86421 and 86440 is 1.

GCF(86421,86440) = 1

We will now calculate the prime factors of 86421 and 86440, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 86421 and 86440.

How to find the GCF of 86421 and 86440?

We will first find the prime factorization of 86421 and 86440. After we will calculate the factors of 86421 and 86440 and find the biggest common factor number .

Step-1: Prime Factorization of 86421

Prime factors of 86421 are 3, 28807. Prime factorization of 86421 in exponential form is:

86421 = 3¹ × 28807¹

Step-2: 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-3: Factors of 86421

List of positive integer factors of 86421 that divides 86421 without a remainder.

1, 3, 28807

Step-4: Factors of 86440

List of positive integer factors of 86440 that divides 86421 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 86421 and 86440. The biggest common factor number is the GCF number.
So the greatest common factor 86421 and 86440 is 1.

Also check out the Least Common Multiple of 86421 and 86440