What is the Greatest Common Factor of 47403 and 47409?

Greatest common factor (GCF) of 47403 and 47409 is 3.

GCF(47403,47409) = 3

We will now calculate the prime factors of 47403 and 47409, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 47403 and 47409.

How to find the GCF of 47403 and 47409?

We will first find the prime factorization of 47403 and 47409. After we will calculate the factors of 47403 and 47409 and find the biggest common factor number .

Step-1: Prime Factorization of 47403

Prime factors of 47403 are 3, 23, 229. Prime factorization of 47403 in exponential form is:

47403 = 3² × 23¹ × 229¹

Step-2: Prime Factorization of 47409

Prime factors of 47409 are 3, 15803. Prime factorization of 47409 in exponential form is:

47409 = 3¹ × 15803¹

Step-3: Factors of 47403

List of positive integer factors of 47403 that divides 47403 without a remainder.

1, 3, 9, 23, 69, 207, 229, 687, 2061, 5267, 15801

Step-4: Factors of 47409

List of positive integer factors of 47409 that divides 47403 without a remainder.

1, 3, 15803

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 47403 and 47409. The biggest common factor number is the GCF number.
So the greatest common factor 47403 and 47409 is 3.

Also check out the Least Common Multiple of 47403 and 47409