What is the Greatest Common Factor of 63557 and 63570?

Greatest common factor (GCF) of 63557 and 63570 is 13.

GCF(63557,63570) = 13

We will now calculate the prime factors of 63557 and 63570, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 63557 and 63570.

How to find the GCF of 63557 and 63570?

We will first find the prime factorization of 63557 and 63570. After we will calculate the factors of 63557 and 63570 and find the biggest common factor number .

Step-1: Prime Factorization of 63557

Prime factors of 63557 are 13, 4889. Prime factorization of 63557 in exponential form is:

63557 = 13¹ × 4889¹

Step-2: Prime Factorization of 63570

Prime factors of 63570 are 2, 3, 5, 13, 163. Prime factorization of 63570 in exponential form is:

63570 = 2¹ × 3¹ × 5¹ × 13¹ × 163¹

Step-3: Factors of 63557

List of positive integer factors of 63557 that divides 63557 without a remainder.

1, 13, 4889

Step-4: Factors of 63570

List of positive integer factors of 63570 that divides 63557 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 163, 195, 326, 390, 489, 815, 978, 1630, 2119, 2445, 4238, 4890, 6357, 10595, 12714, 21190, 31785

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 63557 and 63570. The biggest common factor number is the GCF number.
So the greatest common factor 63557 and 63570 is 13.

Also check out the Least Common Multiple of 63557 and 63570