To convert the binary number \(110110\) to octal, first group the binary digits into sets of three, starting from the right. If needed, pad the leftmost group with zeros:
- \(110110\) becomes \(1\ 101\ 110\) (pad to \(001\ 101\ 110\))
Next, convert each group to its octal equivalent:
- \(001\) = \(1\)
- \(101\) = \(5\)
- \(110\) = \(6\)
So, \(110110\) in octal is \(156\).