Let's take a random number, say 2995.

That's two thousand nine hundred ninety five.
There are thirty two letters in 2995.
There are nine letters in 32.
There are four letters in 9.
There are four letters in 4.
See? perfect (can't be reduced farther).
Spaghetti has nine letters. See above.
Flying spaghetti monster has twenty two letters.
There are nine letters in 22.
Aaaaand... we're back to 4.
Perfect.

(not to mention nearly infinitely simpler than Doc's stuff - it's even mostly forgiving of spelling and counting errors, just have to make sure you get "four" right
