What is the Greatest Common Factor of 20425 and 20431?

Greatest common factor (GCF) of 20425 and 20431 is 1.

GCF(20425,20431) = 1

We will now calculate the prime factors of 20425 and 20431, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20425 and 20431.

How to find the GCF of 20425 and 20431?

We will first find the prime factorization of 20425 and 20431. After we will calculate the factors of 20425 and 20431 and find the biggest common factor number .

Step-1: Prime Factorization of 20425

Prime factors of 20425 are 5, 19, 43. Prime factorization of 20425 in exponential form is:

20425 = 5² × 19¹ × 43¹

Step-2: Prime Factorization of 20431

Prime factors of 20431 are 20431. Prime factorization of 20431 in exponential form is:

20431 = 20431¹

Step-3: Factors of 20425

List of positive integer factors of 20425 that divides 20425 without a remainder.

1, 5, 19, 25, 43, 95, 215, 475, 817, 1075, 4085

Step-4: Factors of 20431

List of positive integer factors of 20431 that divides 20425 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20425 and 20431. The biggest common factor number is the GCF number.
So the greatest common factor 20425 and 20431 is 1.

Also check out the Least Common Multiple of 20425 and 20431