What is the Greatest Common Factor of 18109 and 18128?

Greatest common factor (GCF) of 18109 and 18128 is 1.

GCF(18109,18128) = 1

We will now calculate the prime factors of 18109 and 18128, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18109 and 18128.

How to find the GCF of 18109 and 18128?

We will first find the prime factorization of 18109 and 18128. After we will calculate the factors of 18109 and 18128 and find the biggest common factor number .

Step-1: Prime Factorization of 18109

Prime factors of 18109 are 7, 13, 199. Prime factorization of 18109 in exponential form is:

18109 = 7¹ × 13¹ × 199¹

Step-2: Prime Factorization of 18128

Prime factors of 18128 are 2, 11, 103. Prime factorization of 18128 in exponential form is:

18128 = 2⁴ × 11¹ × 103¹

Step-3: Factors of 18109

List of positive integer factors of 18109 that divides 18109 without a remainder.

1, 7, 13, 91, 199, 1393, 2587

Step-4: Factors of 18128

List of positive integer factors of 18128 that divides 18109 without a remainder.

1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1133, 1648, 2266, 4532, 9064

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18109 and 18128. The biggest common factor number is the GCF number.
So the greatest common factor 18109 and 18128 is 1.

Also check out the Least Common Multiple of 18109 and 18128