What is the Greatest Common Factor of 28391 and 28397?

Greatest common factor (GCF) of 28391 and 28397 is 1.

GCF(28391,28397) = 1

We will now calculate the prime factors of 28391 and 28397, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28391 and 28397.

How to find the GCF of 28391 and 28397?

We will first find the prime factorization of 28391 and 28397. After we will calculate the factors of 28391 and 28397 and find the biggest common factor number .

Step-1: Prime Factorization of 28391

Prime factors of 28391 are 11, 29, 89. Prime factorization of 28391 in exponential form is:

28391 = 11¹ × 29¹ × 89¹

Step-2: Prime Factorization of 28397

Prime factors of 28397 are 73, 389. Prime factorization of 28397 in exponential form is:

28397 = 73¹ × 389¹

Step-3: Factors of 28391

List of positive integer factors of 28391 that divides 28391 without a remainder.

1, 11, 29, 89, 319, 979, 2581

Step-4: Factors of 28397

List of positive integer factors of 28397 that divides 28391 without a remainder.

1, 73, 389

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28391 and 28397. The biggest common factor number is the GCF number.
So the greatest common factor 28391 and 28397 is 1.

Also check out the Least Common Multiple of 28391 and 28397