What is the Greatest Common Factor of 23458 and 23478?

Greatest common factor (GCF) of 23458 and 23478 is 2.

GCF(23458,23478) = 2

We will now calculate the prime factors of 23458 and 23478, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 23458 and 23478.

How to find the GCF of 23458 and 23478?

We will first find the prime factorization of 23458 and 23478. After we will calculate the factors of 23458 and 23478 and find the biggest common factor number .

Step-1: Prime Factorization of 23458

Prime factors of 23458 are 2, 37, 317. Prime factorization of 23458 in exponential form is:

23458 = 2¹ × 37¹ × 317¹

Step-2: Prime Factorization of 23478

Prime factors of 23478 are 2, 3, 7, 13, 43. Prime factorization of 23478 in exponential form is:

23478 = 2¹ × 3¹ × 7¹ × 13¹ × 43¹

Step-3: Factors of 23458

List of positive integer factors of 23458 that divides 23458 without a remainder.

1, 2, 37, 74, 317, 634, 11729

Step-4: Factors of 23478

List of positive integer factors of 23478 that divides 23458 without a remainder.

1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 43, 78, 86, 91, 129, 182, 258, 273, 301, 546, 559, 602, 903, 1118, 1677, 1806, 3354, 3913, 7826, 11739

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 23458 and 23478. The biggest common factor number is the GCF number.
So the greatest common factor 23458 and 23478 is 2.

Also check out the Least Common Multiple of 23458 and 23478