= "&" code ";" [amp]
comment = "<" "!" "--" (-("!" "--" ">") .)* ("!" "--" ">")? [comment] -> ""
comment = "<" "!" (-">" .)+ ">" [comment] -> ""
This is one of my weird ideas. Basically you click through the numbers. If your click number turns out prime, it's saved. Any multiples of that prime are bonus points.
Primes are most common early on the number line, so your score starts compounding fast.
Current number (increments each click):
Points received from last click:
Primes found so far: