Quine-McClusky Method (Tabular)

Step 1: Group the minterms by their number of 1s

Step 2: Matched pair if only difference of 1 variable, _ and 1 is considered a variable changing. Step 3: Repeat step 2, so you have 4 min-terms combined for each row You now have the prime implicants in the 3rd table.

Step 4: Make a prime implicant table → goal is to find which of these prime implicants are the essential prime implicants.

if it has a x on the column alone, then it is an essential prime implicant. Else, it is non-essential.