How do u make a random number generator?

I wanna know how to make a random number generator between 0 and 9999. Not PRINT text, but on a textlabel. And i want it to have the text Guest before it.

You could use math.random.

"This function is an interface to the simple pseudo-random generator function rand provided by ANSI C. (No guarantees can be given for its statistical properties.) When called without arguments, returns a uniform pseudo-random real number in the range [0,1). When called with an integer number m, math.random returns a uniform pseudo-random integer in the range [1, m]. When called with two integer numbers m and n, math.random returns a uniform pseudo-random integer in the range [m, n]."

Example code:

local random = math.random(1,9999) -- random number 1-9999
print(random) -- the random number

Heres your answer!

local num = math.random(1,99999) -- put the two numbers you want generated

if num = 1 then
script.Parent.Text = guest

elseif num = 2 then
script.Parent.Text = guest

else
-- All of the other excluded numbers that you most likely will not want in your script.
-- Content here as well

end

but I wanna know how to make a random number generator ((BETWEEN))) 0 and 9999. Not PRINT text, but on a textlabel. And i want it to have the text ((Guest)) before it.

local Number = math.random(1,9999)
-- Assuming there's a textlabel in workspace called "TextLabel"
workspace.TextLabel.Text = "Guest " .. tostring(Number)

math.random(0,9999)