What is the Greatest Common Factor of 18518 and 18531?

Greatest common factor (GCF) of 18518 and 18531 is 1.

GCF(18518,18531) = 1

We will now calculate the prime factors of 18518 and 18531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18518 and 18531.

How to find the GCF of 18518 and 18531?

We will first find the prime factorization of 18518 and 18531. After we will calculate the factors of 18518 and 18531 and find the biggest common factor number .

Step-1: Prime Factorization of 18518

Prime factors of 18518 are 2, 47, 197. Prime factorization of 18518 in exponential form is:

18518 = 2¹ × 47¹ × 197¹

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 18518

List of positive integer factors of 18518 that divides 18518 without a remainder.

1, 2, 47, 94, 197, 394, 9259

Step-4: Factors of 18531

List of positive integer factors of 18531 that divides 18518 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 18518 and 18531. The biggest common factor number is the GCF number.
So the greatest common factor 18518 and 18531 is 1.

Also check out the Least Common Multiple of 18518 and 18531