What is the Greatest Common Factor of 64670 and 64685?

Greatest common factor (GCF) of 64670 and 64685 is 5.

GCF(64670,64685) = 5

We will now calculate the prime factors of 64670 and 64685, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64670 and 64685.

How to find the GCF of 64670 and 64685?

We will first find the prime factorization of 64670 and 64685. After we will calculate the factors of 64670 and 64685 and find the biggest common factor number .

Step-1: Prime Factorization of 64670

Prime factors of 64670 are 2, 5, 29, 223. Prime factorization of 64670 in exponential form is:

64670 = 2¹ × 5¹ × 29¹ × 223¹

Step-2: 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-3: Factors of 64670

List of positive integer factors of 64670 that divides 64670 without a remainder.

1, 2, 5, 10, 29, 58, 145, 223, 290, 446, 1115, 2230, 6467, 12934, 32335

Step-4: Factors of 64685

List of positive integer factors of 64685 that divides 64670 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64670 and 64685. The biggest common factor number is the GCF number.
So the greatest common factor 64670 and 64685 is 5.

Also check out the Least Common Multiple of 64670 and 64685