What is the Greatest Common Factor of 68391 and 68397?

Greatest common factor (GCF) of 68391 and 68397 is 3.

GCF(68391,68397) = 3

We will now calculate the prime factors of 68391 and 68397, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68391 and 68397.

How to find the GCF of 68391 and 68397?

We will first find the prime factorization of 68391 and 68397. After we will calculate the factors of 68391 and 68397 and find the biggest common factor number .

Step-1: Prime Factorization of 68391

Prime factors of 68391 are 3, 17, 149. Prime factorization of 68391 in exponential form is:

68391 = 3³ × 17¹ × 149¹

Step-2: Prime Factorization of 68397

Prime factors of 68397 are 3, 7, 3257. Prime factorization of 68397 in exponential form is:

68397 = 3¹ × 7¹ × 3257¹

Step-3: Factors of 68391

List of positive integer factors of 68391 that divides 68391 without a remainder.

1, 3, 9, 17, 27, 51, 149, 153, 447, 459, 1341, 2533, 4023, 7599, 22797

Step-4: Factors of 68397

List of positive integer factors of 68397 that divides 68391 without a remainder.

1, 3, 7, 21, 3257, 9771, 22799

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68391 and 68397. The biggest common factor number is the GCF number.
So the greatest common factor 68391 and 68397 is 3.

Also check out the Least Common Multiple of 68391 and 68397