Number of pins of combination of gates
Using individual gates, externally connected (so you connect them as you see fit) , 3 per gate + 1 for power + 1 for ground. That's 11 pins. Round up because most dual inline chips (DIP, soic, etc) only come in even numbers. 12 pins, one NC (non-connected). Smaller chips occasionally come in odd number of pins, 5 pin SOT-23 being a good example. You can get single gate ics in sot-23 5 pin.

This is essentially a duplicate of your other question What exactly are pins in the package?.