Ok, just looking at that, the 120! is a drop in the bucket compared to the rest of the equation, so forget that part.hmcginny wrote:100! is 158, thats a value that I have memorized to help with ridiculous factorial questions.
A good thing to know is to memorize the factorial for every multiple of ten to extrapolate info.
20! = 2.5E18 and 30! = 2.7E32, so 25! should be right around the middle, like E25 or something.
30! = 2.7E32 so 32! should be around E35
80! = 7E118 and 90!= 1E138, so 84! would be near the middle but leaning a bit towards the 80! side, I'd say around E127
40! = 8E47 and 50! = 3E64, so 45! should be smack dab in the middle, like E56.
25+35+127+56 = E243.
If Robotman had a penny for every emoticon used on this site since its inception and he stacked them into a giant tower, how many light years long would it be?