The hash sign or pound sign, used as a symbol on a phone keypad or computer keyboard, before a numeral, or to represent a pound as a unit of weight or mass.
you're breaking Rule #1
Usage
See hash
Definition of # in US English:
#
The pound sign or hash sign, used as a symbol on a phone keypad or computer keyboard, before a numeral, or to represent a pound as a unit of weight or mass.