Incorrect: It's 171k^4 and 255^8.
(which works out to 8.55E20 and 1.78E19)
(which works out to 8.55E20 and 1.78E19)
I love the backtick in my passwords. If a website accepts it and doesn't give me any issues, it's a decent indicator of basic security.
Most of the word usage is going to be limited though too. testyourvocab.com put the average at 27k I think. We're looking for words one can remember easily so the word pool is going to be a lot lower - 15000^4 ~= 5E16 FWIW.