What is the Greatest Common Factor of 12293 and 12312?

Greatest common factor (GCF) of 12293 and 12312 is 19.

GCF(12293,12312) = 19

We will now calculate the prime factors of 12293 and 12312, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12293 and 12312.

How to find the GCF of 12293 and 12312?

We will first find the prime factorization of 12293 and 12312. After we will calculate the factors of 12293 and 12312 and find the biggest common factor number .

Step-1: Prime Factorization of 12293

Prime factors of 12293 are 19, 647. Prime factorization of 12293 in exponential form is:

12293 = 19¹ × 647¹

Step-2: Prime Factorization of 12312

Prime factors of 12312 are 2, 3, 19. Prime factorization of 12312 in exponential form is:

12312 = 2³ × 3⁴ × 19¹

Step-3: Factors of 12293

List of positive integer factors of 12293 that divides 12293 without a remainder.

1, 19, 647

Step-4: Factors of 12312

List of positive integer factors of 12312 that divides 12293 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 81, 108, 114, 152, 162, 171, 216, 228, 324, 342, 456, 513, 648, 684, 1026, 1368, 1539, 2052, 3078, 4104, 6156

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12293 and 12312. The biggest common factor number is the GCF number.
So the greatest common factor 12293 and 12312 is 19.

Also check out the Least Common Multiple of 12293 and 12312