What is the Greatest Common Factor of 13923 and 13940?

Greatest common factor (GCF) of 13923 and 13940 is 17.

GCF(13923,13940) = 17

We will now calculate the prime factors of 13923 and 13940, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13923 and 13940.

How to find the GCF of 13923 and 13940?

We will first find the prime factorization of 13923 and 13940. After we will calculate the factors of 13923 and 13940 and find the biggest common factor number .

Step-1: Prime Factorization of 13923

Prime factors of 13923 are 3, 7, 13, 17. Prime factorization of 13923 in exponential form is:

13923 = 3² × 7¹ × 13¹ × 17¹

Step-2: Prime Factorization of 13940

Prime factors of 13940 are 2, 5, 17, 41. Prime factorization of 13940 in exponential form is:

13940 = 2² × 5¹ × 17¹ × 41¹

Step-3: Factors of 13923

List of positive integer factors of 13923 that divides 13923 without a remainder.

1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 4641

Step-4: Factors of 13940

List of positive integer factors of 13940 that divides 13923 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2788, 3485, 6970

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13923 and 13940. The biggest common factor number is the GCF number.
So the greatest common factor 13923 and 13940 is 17.

Also check out the Least Common Multiple of 13923 and 13940