What is the Greatest Common Factor of 2155 and 2159?

Greatest common factor (GCF) of 2155 and 2159 is 1.

GCF(2155,2159) = 1

We will now calculate the prime factors of 2155 and 2159, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2155 and 2159.

How to find the GCF of 2155 and 2159?

We will first find the prime factorization of 2155 and 2159. After we will calculate the factors of 2155 and 2159 and find the biggest common factor number .

Step-1: Prime Factorization of 2155

Prime factors of 2155 are 5, 431. Prime factorization of 2155 in exponential form is:

2155 = 5¹ × 431¹

Step-2: Prime Factorization of 2159

Prime factors of 2159 are 17, 127. Prime factorization of 2159 in exponential form is:

2159 = 17¹ × 127¹

Step-3: Factors of 2155

List of positive integer factors of 2155 that divides 2155 without a remainder.

1, 5, 431

Step-4: Factors of 2159

List of positive integer factors of 2159 that divides 2155 without a remainder.

1, 17, 127

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2155 and 2159. The biggest common factor number is the GCF number.
So the greatest common factor 2155 and 2159 is 1.

Also check out the Least Common Multiple of 2155 and 2159