What is the Greatest Common Factor of 65530 and 65535?

Greatest common factor (GCF) of 65530 and 65535 is 5.

GCF(65530,65535) = 5

We will now calculate the prime factors of 65530 and 65535, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65530 and 65535.

How to find the GCF of 65530 and 65535?

We will first find the prime factorization of 65530 and 65535. After we will calculate the factors of 65530 and 65535 and find the biggest common factor number .

Step-1: Prime Factorization of 65530

Prime factors of 65530 are 2, 5, 6553. Prime factorization of 65530 in exponential form is:

65530 = 2¹ × 5¹ × 6553¹

Step-2: Prime Factorization of 65535

Prime factors of 65535 are 3, 5, 17, 257. Prime factorization of 65535 in exponential form is:

65535 = 3¹ × 5¹ × 17¹ × 257¹

Step-3: Factors of 65530

List of positive integer factors of 65530 that divides 65530 without a remainder.

1, 2, 5, 10, 6553, 13106, 32765

Step-4: Factors of 65535

List of positive integer factors of 65535 that divides 65530 without a remainder.

1, 3, 5, 15, 17, 51, 85, 255, 257, 771, 1285, 3855, 4369, 13107, 21845

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65530 and 65535. The biggest common factor number is the GCF number.
So the greatest common factor 65530 and 65535 is 5.

Also check out the Least Common Multiple of 65530 and 65535