What is the Greatest Common Factor of 64845 and 64855?

Greatest common factor (GCF) of 64845 and 64855 is 5.

GCF(64845,64855) = 5

We will now calculate the prime factors of 64845 and 64855, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64845 and 64855.

How to find the GCF of 64845 and 64855?

We will first find the prime factorization of 64845 and 64855. After we will calculate the factors of 64845 and 64855 and find the biggest common factor number .

Step-1: Prime Factorization of 64845

Prime factors of 64845 are 3, 5, 11, 131. Prime factorization of 64845 in exponential form is:

64845 = 3² × 5¹ × 11¹ × 131¹

Step-2: Prime Factorization of 64855

Prime factors of 64855 are 5, 7, 17, 109. Prime factorization of 64855 in exponential form is:

64855 = 5¹ × 7¹ × 17¹ × 109¹

Step-3: Factors of 64845

List of positive integer factors of 64845 that divides 64845 without a remainder.

1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 131, 165, 393, 495, 655, 1179, 1441, 1965, 4323, 5895, 7205, 12969, 21615

Step-4: Factors of 64855

List of positive integer factors of 64855 that divides 64845 without a remainder.

1, 5, 7, 17, 35, 85, 109, 119, 545, 595, 763, 1853, 3815, 9265, 12971

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64845 and 64855. The biggest common factor number is the GCF number.
So the greatest common factor 64845 and 64855 is 5.

Also check out the Least Common Multiple of 64845 and 64855