What is the Greatest Common Factor of 18521 and 18531?

Greatest common factor (GCF) of 18521 and 18531 is 1.

GCF(18521,18531) = 1

We will now calculate the prime factors of 18521 and 18531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18521 and 18531.

How to find the GCF of 18521 and 18531?

We will first find the prime factorization of 18521 and 18531. After we will calculate the factors of 18521 and 18531 and find the biggest common factor number .

Step-1: Prime Factorization of 18521

Prime factors of 18521 are 18521. Prime factorization of 18521 in exponential form is:

18521 = 18521¹

Step-2: Prime Factorization of 18531

Prime factors of 18531 are 3, 29, 71. Prime factorization of 18531 in exponential form is:

18531 = 3² × 29¹ × 71¹

Step-3: Factors of 18521

List of positive integer factors of 18521 that divides 18521 without a remainder.

Step-4: Factors of 18531

List of positive integer factors of 18531 that divides 18521 without a remainder.

1, 3, 9, 29, 71, 87, 213, 261, 639, 2059, 6177

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18521 and 18531. The biggest common factor number is the GCF number.
So the greatest common factor 18521 and 18531 is 1.

Also check out the Least Common Multiple of 18521 and 18531