What is the Greatest Common Factor of 20479 and 20485?

Greatest common factor (GCF) of 20479 and 20485 is 1.

GCF(20479,20485) = 1

We will now calculate the prime factors of 20479 and 20485, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20479 and 20485.

How to find the GCF of 20479 and 20485?

We will first find the prime factorization of 20479 and 20485. After we will calculate the factors of 20479 and 20485 and find the biggest common factor number .

Step-1: Prime Factorization of 20479

Prime factors of 20479 are 20479. Prime factorization of 20479 in exponential form is:

20479 = 20479¹

Step-2: Prime Factorization of 20485

Prime factors of 20485 are 5, 17, 241. Prime factorization of 20485 in exponential form is:

20485 = 5¹ × 17¹ × 241¹

Step-3: Factors of 20479

List of positive integer factors of 20479 that divides 20479 without a remainder.

Step-4: Factors of 20485

List of positive integer factors of 20485 that divides 20479 without a remainder.

1, 5, 17, 85, 241, 1205, 4097

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20479 and 20485. The biggest common factor number is the GCF number.
So the greatest common factor 20479 and 20485 is 1.

Also check out the Least Common Multiple of 20479 and 20485