What is the Greatest Common Factor of 12402 and 12409?

Greatest common factor (GCF) of 12402 and 12409 is 1.

GCF(12402,12409) = 1

We will now calculate the prime factors of 12402 and 12409, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12402 and 12409.

How to find the GCF of 12402 and 12409?

We will first find the prime factorization of 12402 and 12409. After we will calculate the factors of 12402 and 12409 and find the biggest common factor number .

Step-1: Prime Factorization of 12402

Prime factors of 12402 are 2, 3, 13, 53. Prime factorization of 12402 in exponential form is:

12402 = 2¹ × 3² × 13¹ × 53¹

Step-2: Prime Factorization of 12409

Prime factors of 12409 are 12409. Prime factorization of 12409 in exponential form is:

12409 = 12409¹

Step-3: Factors of 12402

List of positive integer factors of 12402 that divides 12402 without a remainder.

1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 2067, 4134, 6201

Step-4: Factors of 12409

List of positive integer factors of 12409 that divides 12402 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12402 and 12409. The biggest common factor number is the GCF number.
So the greatest common factor 12402 and 12409 is 1.

Also check out the Least Common Multiple of 12402 and 12409