What is the Greatest Common Factor of 20309 and 20313?

Greatest common factor (GCF) of 20309 and 20313 is 1.

GCF(20309,20313) = 1

We will now calculate the prime factors of 20309 and 20313, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20309 and 20313.

How to find the GCF of 20309 and 20313?

We will first find the prime factorization of 20309 and 20313. After we will calculate the factors of 20309 and 20313 and find the biggest common factor number .

Step-1: Prime Factorization of 20309

Prime factors of 20309 are 23, 883. Prime factorization of 20309 in exponential form is:

20309 = 23¹ × 883¹

Step-2: Prime Factorization of 20313

Prime factors of 20313 are 3, 37, 61. Prime factorization of 20313 in exponential form is:

20313 = 3² × 37¹ × 61¹

Step-3: Factors of 20309

List of positive integer factors of 20309 that divides 20309 without a remainder.

1, 23, 883

Step-4: Factors of 20313

List of positive integer factors of 20313 that divides 20309 without a remainder.

1, 3, 9, 37, 61, 111, 183, 333, 549, 2257, 6771

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20309 and 20313. The biggest common factor number is the GCF number.
So the greatest common factor 20309 and 20313 is 1.

Also check out the Least Common Multiple of 20309 and 20313