What is the Greatest Common Factor of 64515 and 64520?

Greatest common factor (GCF) of 64515 and 64520 is 5.

GCF(64515,64520) = 5

We will now calculate the prime factors of 64515 and 64520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64515 and 64520.

How to find the GCF of 64515 and 64520?

We will first find the prime factorization of 64515 and 64520. After we will calculate the factors of 64515 and 64520 and find the biggest common factor number .

Step-1: Prime Factorization of 64515

Prime factors of 64515 are 3, 5, 11, 17, 23. Prime factorization of 64515 in exponential form is:

64515 = 3¹ × 5¹ × 11¹ × 17¹ × 23¹

Step-2: Prime Factorization of 64520

Prime factors of 64520 are 2, 5, 1613. Prime factorization of 64520 in exponential form is:

64520 = 2³ × 5¹ × 1613¹

Step-3: Factors of 64515

List of positive integer factors of 64515 that divides 64515 without a remainder.

1, 3, 5, 11, 15, 17, 23, 33, 51, 55, 69, 85, 115, 165, 187, 253, 255, 345, 391, 561, 759, 935, 1173, 1265, 1955, 2805, 3795, 4301, 5865, 12903, 21505

Step-4: Factors of 64520

List of positive integer factors of 64520 that divides 64515 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1613, 3226, 6452, 8065, 12904, 16130, 32260

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64515 and 64520. The biggest common factor number is the GCF number.
So the greatest common factor 64515 and 64520 is 5.

Also check out the Least Common Multiple of 64515 and 64520