What is the Greatest Common Factor of 64770 and 64789?

Greatest common factor (GCF) of 64770 and 64789 is 1.

GCF(64770,64789) = 1

We will now calculate the prime factors of 64770 and 64789, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64770 and 64789.

How to find the GCF of 64770 and 64789?

We will first find the prime factorization of 64770 and 64789. After we will calculate the factors of 64770 and 64789 and find the biggest common factor number .

Step-1: Prime Factorization of 64770

Prime factors of 64770 are 2, 3, 5, 17, 127. Prime factorization of 64770 in exponential form is:

64770 = 2¹ × 3¹ × 5¹ × 17¹ × 127¹

Step-2: Prime Factorization of 64789

Prime factors of 64789 are 67, 967. Prime factorization of 64789 in exponential form is:

64789 = 67¹ × 967¹

Step-3: Factors of 64770

List of positive integer factors of 64770 that divides 64770 without a remainder.

1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 127, 170, 254, 255, 381, 510, 635, 762, 1270, 1905, 2159, 3810, 4318, 6477, 10795, 12954, 21590, 32385

Step-4: Factors of 64789

List of positive integer factors of 64789 that divides 64770 without a remainder.

1, 67, 967

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64770 and 64789. The biggest common factor number is the GCF number.
So the greatest common factor 64770 and 64789 is 1.

Also check out the Least Common Multiple of 64770 and 64789