What is the Greatest Common Factor of 28378 and 28391?

Greatest common factor (GCF) of 28378 and 28391 is 1.

GCF(28378,28391) = 1

We will now calculate the prime factors of 28378 and 28391, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28378 and 28391.

How to find the GCF of 28378 and 28391?

We will first find the prime factorization of 28378 and 28391. After we will calculate the factors of 28378 and 28391 and find the biggest common factor number .

Step-1: Prime Factorization of 28378

Prime factors of 28378 are 2, 7, 2027. Prime factorization of 28378 in exponential form is:

28378 = 2¹ × 7¹ × 2027¹

Step-2: Prime Factorization of 28391

Prime factors of 28391 are 11, 29, 89. Prime factorization of 28391 in exponential form is:

28391 = 11¹ × 29¹ × 89¹

Step-3: Factors of 28378

List of positive integer factors of 28378 that divides 28378 without a remainder.

1, 2, 7, 14, 2027, 4054, 14189

Step-4: Factors of 28391

List of positive integer factors of 28391 that divides 28378 without a remainder.

1, 11, 29, 89, 319, 979, 2581

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28378 and 28391. The biggest common factor number is the GCF number.
So the greatest common factor 28378 and 28391 is 1.

Also check out the Least Common Multiple of 28378 and 28391