What is the Greatest Common Factor of 8505 and 8509?

Greatest common factor (GCF) of 8505 and 8509 is 1.

GCF(8505,8509) = 1

We will now calculate the prime factors of 8505 and 8509, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8505 and 8509.

How to find the GCF of 8505 and 8509?

We will first find the prime factorization of 8505 and 8509. After we will calculate the factors of 8505 and 8509 and find the biggest common factor number .

Step-1: Prime Factorization of 8505

Prime factors of 8505 are 3, 5, 7. Prime factorization of 8505 in exponential form is:

8505 = 3⁵ × 5¹ × 7¹

Step-2: Prime Factorization of 8509

Prime factors of 8509 are 67, 127. Prime factorization of 8509 in exponential form is:

8509 = 67¹ × 127¹

Step-3: Factors of 8505

List of positive integer factors of 8505 that divides 8505 without a remainder.

1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 945, 1215, 1701, 2835

Step-4: Factors of 8509

List of positive integer factors of 8509 that divides 8505 without a remainder.

1, 67, 127

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8505 and 8509. The biggest common factor number is the GCF number.
So the greatest common factor 8505 and 8509 is 1.

Also check out the Least Common Multiple of 8505 and 8509