What is the Greatest Common Factor of 7143 and 7161?

Greatest common factor (GCF) of 7143 and 7161 is 3.

GCF(7143,7161) = 3

We will now calculate the prime factors of 7143 and 7161, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7143 and 7161.

How to find the GCF of 7143 and 7161?

We will first find the prime factorization of 7143 and 7161. After we will calculate the factors of 7143 and 7161 and find the biggest common factor number .

Step-1: Prime Factorization of 7143

Prime factors of 7143 are 3, 2381. Prime factorization of 7143 in exponential form is:

7143 = 3¹ × 2381¹

Step-2: Prime Factorization of 7161

Prime factors of 7161 are 3, 7, 11, 31. Prime factorization of 7161 in exponential form is:

7161 = 3¹ × 7¹ × 11¹ × 31¹

Step-3: Factors of 7143

List of positive integer factors of 7143 that divides 7143 without a remainder.

1, 3, 2381

Step-4: Factors of 7161

List of positive integer factors of 7161 that divides 7143 without a remainder.

1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7143 and 7161. The biggest common factor number is the GCF number.
So the greatest common factor 7143 and 7161 is 3.

Also check out the Least Common Multiple of 7143 and 7161