What is the Greatest Common Factor of 64428 and 64443?

Greatest common factor (GCF) of 64428 and 64443 is 3.

GCF(64428,64443) = 3

We will now calculate the prime factors of 64428 and 64443, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64428 and 64443.

How to find the GCF of 64428 and 64443?

We will first find the prime factorization of 64428 and 64443. After we will calculate the factors of 64428 and 64443 and find the biggest common factor number .

Step-1: Prime Factorization of 64428

Prime factors of 64428 are 2, 3, 7, 13, 59. Prime factorization of 64428 in exponential form is:

64428 = 2² × 3¹ × 7¹ × 13¹ × 59¹

Step-2: Prime Factorization of 64443

Prime factors of 64443 are 3, 21481. Prime factorization of 64443 in exponential form is:

64443 = 3¹ × 21481¹

Step-3: Factors of 64428

List of positive integer factors of 64428 that divides 64428 without a remainder.

1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 59, 78, 84, 91, 118, 156, 177, 182, 236, 273, 354, 364, 413, 546, 708, 767, 826, 1092, 1239, 1534, 1652, 2301, 2478, 3068, 4602, 4956, 5369, 9204, 10738, 16107, 21476, 32214

Step-4: Factors of 64443

List of positive integer factors of 64443 that divides 64428 without a remainder.

1, 3, 21481

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64428 and 64443. The biggest common factor number is the GCF number.
So the greatest common factor 64428 and 64443 is 3.

Also check out the Least Common Multiple of 64428 and 64443