What is the Greatest Common Factor of 345 and 349?

Greatest common factor (GCF) of 345 and 349 is 1.

GCF(345,349) = 1

We will now calculate the prime factors of 345 and 349, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 345 and 349.

How to find the GCF of 345 and 349?

We will first find the prime factorization of 345 and 349. After we will calculate the factors of 345 and 349 and find the biggest common factor number .

Step-1: Prime Factorization of 345

Prime factors of 345 are 3, 5, 23. Prime factorization of 345 in exponential form is:

345 = 3¹ × 5¹ × 23¹

Step-2: Prime Factorization of 349

Prime factors of 349 are 349. Prime factorization of 349 in exponential form is:

349 = 349¹

Step-3: Factors of 345

List of positive integer factors of 345 that divides 345 without a remainder.

1, 3, 5, 15, 23, 69, 115

Step-4: Factors of 349

List of positive integer factors of 349 that divides 345 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 345 and 349. The biggest common factor number is the GCF number.
So the greatest common factor 345 and 349 is 1.

Also check out the Least Common Multiple of 345 and 349