Answer:
3
Explanation:
To find the greatest common factor (GCF) shared by 54 and 39, you can use the prime factorization method:
1. Find the prime factorization of 54:
\(54 = 2 * 27\)
\(54 = 2 * 3 * 3 * 3\)
2. Find the prime factorization of 39:
\(39 = 3 * 13\)
3. Identify the common prime factors:
The common prime factor between 54 and 39 is 3.
4. Calculate the GCF by multiplying the common prime factors:
\(GCF(54, 39) = 3\)
So, the greatest common factor shared by 54 and 39 is 3.