What is the Greatest Common Factor of 20623 and 20636?

Greatest common factor (GCF) of 20623 and 20636 is 1.

GCF(20623,20636) = 1

We will now calculate the prime factors of 20623 and 20636, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20623 and 20636.

How to find the GCF of 20623 and 20636?

We will first find the prime factorization of 20623 and 20636. After we will calculate the factors of 20623 and 20636 and find the biggest common factor number .

Step-1: Prime Factorization of 20623

Prime factors of 20623 are 41, 503. Prime factorization of 20623 in exponential form is:

20623 = 41¹ × 503¹

Step-2: Prime Factorization of 20636

Prime factors of 20636 are 2, 7, 11, 67. Prime factorization of 20636 in exponential form is:

20636 = 2² × 7¹ × 11¹ × 67¹

Step-3: Factors of 20623

List of positive integer factors of 20623 that divides 20623 without a remainder.

1, 41, 503

Step-4: Factors of 20636

List of positive integer factors of 20636 that divides 20623 without a remainder.

1, 2, 4, 7, 11, 14, 22, 28, 44, 67, 77, 134, 154, 268, 308, 469, 737, 938, 1474, 1876, 2948, 5159, 10318

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20623 and 20636. The biggest common factor number is the GCF number.
So the greatest common factor 20623 and 20636 is 1.

Also check out the Least Common Multiple of 20623 and 20636