What is the Greatest Common Factor of 78121 and 78138?

Greatest common factor (GCF) of 78121 and 78138 is 1.

GCF(78121,78138) = 1

We will now calculate the prime factors of 78121 and 78138, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78121 and 78138.

How to find the GCF of 78121 and 78138?

We will first find the prime factorization of 78121 and 78138. After we will calculate the factors of 78121 and 78138 and find the biggest common factor number .

Step-1: Prime Factorization of 78121

Prime factors of 78121 are 78121. Prime factorization of 78121 in exponential form is:

78121 = 78121¹

Step-2: Prime Factorization of 78138

Prime factors of 78138 are 2, 3, 1447. Prime factorization of 78138 in exponential form is:

78138 = 2¹ × 3³ × 1447¹

Step-3: Factors of 78121

List of positive integer factors of 78121 that divides 78121 without a remainder.

Step-4: Factors of 78138

List of positive integer factors of 78138 that divides 78121 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 1447, 2894, 4341, 8682, 13023, 26046, 39069

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78121 and 78138. The biggest common factor number is the GCF number.
So the greatest common factor 78121 and 78138 is 1.

Also check out the Least Common Multiple of 78121 and 78138