What is the Greatest Common Factor of 20355 and 20368?

Greatest common factor (GCF) of 20355 and 20368 is 1.

GCF(20355,20368) = 1

We will now calculate the prime factors of 20355 and 20368, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20355 and 20368.

How to find the GCF of 20355 and 20368?

We will first find the prime factorization of 20355 and 20368. After we will calculate the factors of 20355 and 20368 and find the biggest common factor number .

Step-1: Prime Factorization of 20355

Prime factors of 20355 are 3, 5, 23, 59. Prime factorization of 20355 in exponential form is:

20355 = 3¹ × 5¹ × 23¹ × 59¹

Step-2: Prime Factorization of 20368

Prime factors of 20368 are 2, 19, 67. Prime factorization of 20368 in exponential form is:

20368 = 2⁴ × 19¹ × 67¹

Step-3: Factors of 20355

List of positive integer factors of 20355 that divides 20355 without a remainder.

1, 3, 5, 15, 23, 59, 69, 115, 177, 295, 345, 885, 1357, 4071, 6785

Step-4: Factors of 20368

List of positive integer factors of 20368 that divides 20355 without a remainder.

1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 268, 304, 536, 1072, 1273, 2546, 5092, 10184

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20355 and 20368. The biggest common factor number is the GCF number.
So the greatest common factor 20355 and 20368 is 1.

Also check out the Least Common Multiple of 20355 and 20368