What is the Greatest Common Factor of 64685 and 64690?

Greatest common factor (GCF) of 64685 and 64690 is 5.

GCF(64685,64690) = 5

We will now calculate the prime factors of 64685 and 64690, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64685 and 64690.

How to find the GCF of 64685 and 64690?

We will first find the prime factorization of 64685 and 64690. After we will calculate the factors of 64685 and 64690 and find the biggest common factor number .

Step-1: Prime Factorization of 64685

Prime factors of 64685 are 5, 17, 761. Prime factorization of 64685 in exponential form is:

64685 = 5¹ × 17¹ × 761¹

Step-2: Prime Factorization of 64690

Prime factors of 64690 are 2, 5, 6469. Prime factorization of 64690 in exponential form is:

64690 = 2¹ × 5¹ × 6469¹

Step-3: Factors of 64685

List of positive integer factors of 64685 that divides 64685 without a remainder.

1, 5, 17, 85, 761, 3805, 12937

Step-4: Factors of 64690

List of positive integer factors of 64690 that divides 64685 without a remainder.

1, 2, 5, 10, 6469, 12938, 32345

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64685 and 64690. The biggest common factor number is the GCF number.
So the greatest common factor 64685 and 64690 is 5.

Also check out the Least Common Multiple of 64685 and 64690