What is the Greatest Common Factor of 64638 and 64643?

Greatest common factor (GCF) of 64638 and 64643 is 1.

GCF(64638,64643) = 1

We will now calculate the prime factors of 64638 and 64643, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64638 and 64643.

How to find the GCF of 64638 and 64643?

We will first find the prime factorization of 64638 and 64643. After we will calculate the factors of 64638 and 64643 and find the biggest common factor number .

Step-1: Prime Factorization of 64638

Prime factors of 64638 are 2, 3, 7, 19. Prime factorization of 64638 in exponential form is:

64638 = 2¹ × 3⁵ × 7¹ × 19¹

Step-2: Prime Factorization of 64643

Prime factors of 64643 are 127, 509. Prime factorization of 64643 in exponential form is:

64643 = 127¹ × 509¹

Step-3: Factors of 64638

List of positive integer factors of 64638 that divides 64638 without a remainder.

1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 81, 114, 126, 133, 162, 171, 189, 243, 266, 342, 378, 399, 486, 513, 567, 798, 1026, 1134, 1197, 1539, 1701, 2394, 3078, 3402, 3591, 4617, 7182, 9234, 10773, 21546, 32319

Step-4: Factors of 64643

List of positive integer factors of 64643 that divides 64638 without a remainder.

1, 127, 509

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64638 and 64643. The biggest common factor number is the GCF number.
So the greatest common factor 64638 and 64643 is 1.

Also check out the Least Common Multiple of 64638 and 64643