What is the Greatest Common Factor of 78389 and 78403?

Greatest common factor (GCF) of 78389 and 78403 is 1.

GCF(78389,78403) = 1

We will now calculate the prime factors of 78389 and 78403, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78389 and 78403.

How to find the GCF of 78389 and 78403?

We will first find the prime factorization of 78389 and 78403. After we will calculate the factors of 78389 and 78403 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 78403

Prime factors of 78403 are 13, 37, 163. Prime factorization of 78403 in exponential form is:

78403 = 13¹ × 37¹ × 163¹

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 78403

List of positive integer factors of 78403 that divides 78389 without a remainder.

1, 13, 37, 163, 481, 2119, 6031

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78389 and 78403. The biggest common factor number is the GCF number.
So the greatest common factor 78389 and 78403 is 1.

Also check out the Least Common Multiple of 78389 and 78403