What is the Greatest Common Factor of 20685 and 20693?

Greatest common factor (GCF) of 20685 and 20693 is 1.

GCF(20685,20693) = 1

We will now calculate the prime factors of 20685 and 20693, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20685 and 20693.

How to find the GCF of 20685 and 20693?

We will first find the prime factorization of 20685 and 20693. After we will calculate the factors of 20685 and 20693 and find the biggest common factor number .

Step-1: Prime Factorization of 20685

Prime factors of 20685 are 3, 5, 7, 197. Prime factorization of 20685 in exponential form is:

20685 = 3¹ × 5¹ × 7¹ × 197¹

Step-2: Prime Factorization of 20693

Prime factors of 20693 are 20693. Prime factorization of 20693 in exponential form is:

20693 = 20693¹

Step-3: Factors of 20685

List of positive integer factors of 20685 that divides 20685 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105, 197, 591, 985, 1379, 2955, 4137, 6895

Step-4: Factors of 20693

List of positive integer factors of 20693 that divides 20685 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20685 and 20693. The biggest common factor number is the GCF number.
So the greatest common factor 20685 and 20693 is 1.

Also check out the Least Common Multiple of 20685 and 20693