What is the Greatest Common Factor of 78389 and 78409?

Greatest common factor (GCF) of 78389 and 78409 is 1.

GCF(78389,78409) = 1

We will now calculate the prime factors of 78389 and 78409, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78389 and 78409.

How to find the GCF of 78389 and 78409?

We will first find the prime factorization of 78389 and 78409. After we will calculate the factors of 78389 and 78409 and find the biggest common factor number .

Step-1: Prime Factorization of 78389

Prime factors of 78389 are 43, 1823. Prime factorization of 78389 in exponential form is:

78389 = 43¹ × 1823¹

Step-2: Prime Factorization of 78409

Prime factors of 78409 are 89, 881. Prime factorization of 78409 in exponential form is:

78409 = 89¹ × 881¹

Step-3: Factors of 78389

List of positive integer factors of 78389 that divides 78389 without a remainder.

1, 43, 1823

Step-4: Factors of 78409

List of positive integer factors of 78409 that divides 78389 without a remainder.

1, 89, 881

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78389 and 78409. The biggest common factor number is the GCF number.
So the greatest common factor 78389 and 78409 is 1.

Also check out the Least Common Multiple of 78389 and 78409