What is the Greatest Common Factor of 18487 and 18505?

Greatest common factor (GCF) of 18487 and 18505 is 1.

GCF(18487,18505) = 1

We will now calculate the prime factors of 18487 and 18505, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18487 and 18505.

How to find the GCF of 18487 and 18505?

We will first find the prime factorization of 18487 and 18505. After we will calculate the factors of 18487 and 18505 and find the biggest common factor number .

Step-1: Prime Factorization of 18487

Prime factors of 18487 are 7, 19, 139. Prime factorization of 18487 in exponential form is:

18487 = 7¹ × 19¹ × 139¹

Step-2: Prime Factorization of 18505

Prime factors of 18505 are 5, 3701. Prime factorization of 18505 in exponential form is:

18505 = 5¹ × 3701¹

Step-3: Factors of 18487

List of positive integer factors of 18487 that divides 18487 without a remainder.

1, 7, 19, 133, 139, 973, 2641

Step-4: Factors of 18505

List of positive integer factors of 18505 that divides 18487 without a remainder.

1, 5, 3701

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18487 and 18505. The biggest common factor number is the GCF number.
So the greatest common factor 18487 and 18505 is 1.

Also check out the Least Common Multiple of 18487 and 18505