What is the Greatest Common Factor of 19458 and 19473?

Greatest common factor (GCF) of 19458 and 19473 is 3.

GCF(19458,19473) = 3

We will now calculate the prime factors of 19458 and 19473, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19458 and 19473.

How to find the GCF of 19458 and 19473?

We will first find the prime factorization of 19458 and 19473. After we will calculate the factors of 19458 and 19473 and find the biggest common factor number .

Step-1: Prime Factorization of 19458

Prime factors of 19458 are 2, 3, 23, 47. Prime factorization of 19458 in exponential form is:

19458 = 2¹ × 3² × 23¹ × 47¹

Step-2: Prime Factorization of 19473

Prime factors of 19473 are 3, 6491. Prime factorization of 19473 in exponential form is:

19473 = 3¹ × 6491¹

Step-3: Factors of 19458

List of positive integer factors of 19458 that divides 19458 without a remainder.

1, 2, 3, 6, 9, 18, 23, 46, 47, 69, 94, 138, 141, 207, 282, 414, 423, 846, 1081, 2162, 3243, 6486, 9729

Step-4: Factors of 19473

List of positive integer factors of 19473 that divides 19458 without a remainder.

1, 3, 6491

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19458 and 19473. The biggest common factor number is the GCF number.
So the greatest common factor 19458 and 19473 is 3.

Also check out the Least Common Multiple of 19458 and 19473