What is the Greatest Common Factor of 12383 and 12390?

Greatest common factor (GCF) of 12383 and 12390 is 7.

GCF(12383,12390) = 7

We will now calculate the prime factors of 12383 and 12390, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12383 and 12390.

How to find the GCF of 12383 and 12390?

We will first find the prime factorization of 12383 and 12390. After we will calculate the factors of 12383 and 12390 and find the biggest common factor number .

Step-1: Prime Factorization of 12383

Prime factors of 12383 are 7, 29, 61. Prime factorization of 12383 in exponential form is:

12383 = 7¹ × 29¹ × 61¹

Step-2: Prime Factorization of 12390

Prime factors of 12390 are 2, 3, 5, 7, 59. Prime factorization of 12390 in exponential form is:

12390 = 2¹ × 3¹ × 5¹ × 7¹ × 59¹

Step-3: Factors of 12383

List of positive integer factors of 12383 that divides 12383 without a remainder.

1, 7, 29, 61, 203, 427, 1769

Step-4: Factors of 12390

List of positive integer factors of 12390 that divides 12383 without a remainder.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 59, 70, 105, 118, 177, 210, 295, 354, 413, 590, 826, 885, 1239, 1770, 2065, 2478, 4130, 6195

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12383 and 12390. The biggest common factor number is the GCF number.
So the greatest common factor 12383 and 12390 is 7.

Also check out the Least Common Multiple of 12383 and 12390