To find the greatest common factor (GCF) of the expression \( 18j + 27 \), we will first factor out the coefficients of the terms in the expression.
- The coefficients are 18 and 27.
- The factors of 18 are: \( 1, 2, 3, 6, 9, 18 \)
- The factors of 27 are: \( 1, 3, 9, 27 \)
Now, looking for the common factors, we have:
- The common factors of 18 and 27 are \( 1, 3, 9 \).
The greatest of these common factors is 9.
So, the GCF of \( 18j + 27 \) is 9.