What is the Greatest Common Factor of 64290 and 64305?

Greatest common factor (GCF) of 64290 and 64305 is 15.

GCF(64290,64305) = 15

We will now calculate the prime factors of 64290 and 64305, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64290 and 64305.

How to find the GCF of 64290 and 64305?

We will first find the prime factorization of 64290 and 64305. After we will calculate the factors of 64290 and 64305 and find the biggest common factor number .

Step-1: Prime Factorization of 64290

Prime factors of 64290 are 2, 3, 5, 2143. Prime factorization of 64290 in exponential form is:

64290 = 2¹ × 3¹ × 5¹ × 2143¹

Step-2: Prime Factorization of 64305

Prime factors of 64305 are 3, 5, 1429. Prime factorization of 64305 in exponential form is:

64305 = 3² × 5¹ × 1429¹

Step-3: Factors of 64290

List of positive integer factors of 64290 that divides 64290 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2143, 4286, 6429, 10715, 12858, 21430, 32145

Step-4: Factors of 64305

List of positive integer factors of 64305 that divides 64290 without a remainder.

1, 3, 5, 9, 15, 45, 1429, 4287, 7145, 12861, 21435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64290 and 64305. The biggest common factor number is the GCF number.
So the greatest common factor 64290 and 64305 is 15.

Also check out the Least Common Multiple of 64290 and 64305