420
Glitch in the matrix
(ani.social)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
Depends on the system you use. Most common system worldwide and in the academic circles (the oldest of the two) has 1 as the answer.
There are no other systems - only people who are following the actual rules of Maths and those who aren't. And yes, 1 is the correct answer