What is the Greatest Common Factor of 19473 and 19485?

Greatest common factor (GCF) of 19473 and 19485 is 3.

GCF(19473,19485) = 3

We will now calculate the prime factors of 19473 and 19485, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19473 and 19485.

How to find the GCF of 19473 and 19485?

We will first find the prime factorization of 19473 and 19485. After we will calculate the factors of 19473 and 19485 and find the biggest common factor number .

Step-1: Prime Factorization of 19473

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

19473 = 3¹ × 6491¹

Step-2: Prime Factorization of 19485

Prime factors of 19485 are 3, 5, 433. Prime factorization of 19485 in exponential form is:

19485 = 3² × 5¹ × 433¹

Step-3: Factors of 19473

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

1, 3, 6491

Step-4: Factors of 19485

List of positive integer factors of 19485 that divides 19473 without a remainder.

1, 3, 5, 9, 15, 45, 433, 1299, 2165, 3897, 6495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19473 and 19485. The biggest common factor number is the GCF number.
So the greatest common factor 19473 and 19485 is 3.

Also check out the Least Common Multiple of 19473 and 19485