What is the Greatest Common Factor of 78243 and 78253?

Greatest common factor (GCF) of 78243 and 78253 is 1.

GCF(78243,78253) = 1

We will now calculate the prime factors of 78243 and 78253, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78243 and 78253.

How to find the GCF of 78243 and 78253?

We will first find the prime factorization of 78243 and 78253. After we will calculate the factors of 78243 and 78253 and find the biggest common factor number .

Step-1: Prime Factorization of 78243

Prime factors of 78243 are 3, 11, 2371. Prime factorization of 78243 in exponential form is:

78243 = 3¹ × 11¹ × 2371¹

Step-2: Prime Factorization of 78253

Prime factors of 78253 are 7, 1597. Prime factorization of 78253 in exponential form is:

78253 = 7² × 1597¹

Step-3: Factors of 78243

List of positive integer factors of 78243 that divides 78243 without a remainder.

1, 3, 11, 33, 2371, 7113, 26081

Step-4: Factors of 78253

List of positive integer factors of 78253 that divides 78243 without a remainder.

1, 7, 49, 1597, 11179

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78243 and 78253. The biggest common factor number is the GCF number.
So the greatest common factor 78243 and 78253 is 1.

Also check out the Least Common Multiple of 78243 and 78253