What is the Greatest Common Factor of 8391 and 8398?

Greatest common factor (GCF) of 8391 and 8398 is 1.

GCF(8391,8398) = 1

We will now calculate the prime factors of 8391 and 8398, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8391 and 8398.

How to find the GCF of 8391 and 8398?

We will first find the prime factorization of 8391 and 8398. After we will calculate the factors of 8391 and 8398 and find the biggest common factor number .

Step-1: Prime Factorization of 8391

Prime factors of 8391 are 3, 2797. Prime factorization of 8391 in exponential form is:

8391 = 3¹ × 2797¹

Step-2: Prime Factorization of 8398

Prime factors of 8398 are 2, 13, 17, 19. Prime factorization of 8398 in exponential form is:

8398 = 2¹ × 13¹ × 17¹ × 19¹

Step-3: Factors of 8391

List of positive integer factors of 8391 that divides 8391 without a remainder.

1, 3, 2797

Step-4: Factors of 8398

List of positive integer factors of 8398 that divides 8391 without a remainder.

1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 323, 442, 494, 646, 4199

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8391 and 8398. The biggest common factor number is the GCF number.
So the greatest common factor 8391 and 8398 is 1.

Also check out the Least Common Multiple of 8391 and 8398