What is the Greatest Common Factor of 64590 and 64605?

Greatest common factor (GCF) of 64590 and 64605 is 15.

GCF(64590,64605) = 15

We will now calculate the prime factors of 64590 and 64605, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64590 and 64605.

How to find the GCF of 64590 and 64605?

We will first find the prime factorization of 64590 and 64605. After we will calculate the factors of 64590 and 64605 and find the biggest common factor number .

Step-1: Prime Factorization of 64590

Prime factors of 64590 are 2, 3, 5, 2153. Prime factorization of 64590 in exponential form is:

64590 = 2¹ × 3¹ × 5¹ × 2153¹

Step-2: Prime Factorization of 64605

Prime factors of 64605 are 3, 5, 59, 73. Prime factorization of 64605 in exponential form is:

64605 = 3¹ × 5¹ × 59¹ × 73¹

Step-3: Factors of 64590

List of positive integer factors of 64590 that divides 64590 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2153, 4306, 6459, 10765, 12918, 21530, 32295

Step-4: Factors of 64605

List of positive integer factors of 64605 that divides 64590 without a remainder.

1, 3, 5, 15, 59, 73, 177, 219, 295, 365, 885, 1095, 4307, 12921, 21535

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64590 and 64605. The biggest common factor number is the GCF number.
So the greatest common factor 64590 and 64605 is 15.

Also check out the Least Common Multiple of 64590 and 64605