What is the Greatest Common Factor of 90305 and 90309?

Greatest common factor (GCF) of 90305 and 90309 is 1.

GCF(90305,90309) = 1

We will now calculate the prime factors of 90305 and 90309, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90305 and 90309.

How to find the GCF of 90305 and 90309?

We will first find the prime factorization of 90305 and 90309. After we will calculate the factors of 90305 and 90309 and find the biggest common factor number .

Step-1: Prime Factorization of 90305

Prime factors of 90305 are 5, 18061. Prime factorization of 90305 in exponential form is:

90305 = 5¹ × 18061¹

Step-2: Prime Factorization of 90309

Prime factors of 90309 are 3, 30103. Prime factorization of 90309 in exponential form is:

90309 = 3¹ × 30103¹

Step-3: Factors of 90305

List of positive integer factors of 90305 that divides 90305 without a remainder.

1, 5, 18061

Step-4: Factors of 90309

List of positive integer factors of 90309 that divides 90305 without a remainder.

1, 3, 30103

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90305 and 90309. The biggest common factor number is the GCF number.
So the greatest common factor 90305 and 90309 is 1.

Also check out the Least Common Multiple of 90305 and 90309