[QUOTE=PrimeCrazzy;101818]You can also get 185 by using the sum and subfactorial functions ad follows:

(sum(sum4))*sqrt (4 subfactorial)+sum4+sum4[/QUOTE]

Most of us are not interested in your "change of the rules". If you are allowed to change the rules to suit yourself, then any value becomes trivial.

Please stick to the established restrictions.

186 = ((4 / .4)! + 4) / √.4~

[quote=PrimeCrazzy;101700]I suggest you allow two additional functions, sum and subfacorial.

S4 = 4+3+2+1= 10 (I do not have a sigma on my computer)
!4= 9

These are sometimes accepable in this game.[/quote]PrimeCrazzy,

How about starting a new thread, titled something like "PrimeCrazzy's Four Fours", where you lay out the set of rules [u]you[/u] particularly like? Then those of us interested in that set can start building 1, 2, 3, ... :smile:

[quote=Andi47;101839]186 = ((4 / .4)! + 4) / √.4~[/quote]I think you meant:

186 = ((√4 / .4)! + 4) / √.4~

187 = ((gamma(4))! + 4 + 4!) / 4
188 = (4 + 4) * 4! - 4
189 = (4! + 4! / .4) / .4~
190 = (4 + 4) * 4! - √4

... and now one of those exciting prime decades!

191 = ((gamma(4))! + 44) / 4
192 = (44 + 4) * 4

[QUOTE=cheesehead;101945]I think you meant:

186 = ((√4 / .4)! + 4) / √.4~[/QUOTE]

Ooops, catch that loose square root! :wink:

193 = (4 + 4) * 4! + gamma(√4)
194 = (4 + 4) * 4! + √4
195 = (4! + (4! / .4~)) / √.4~
196 = (4! / √4 + √4) ^ √4

[quote=Andi47;101963]Ooops, catch that loose square root! :wink:

< snip >

195 = (4! + (4! / .4~)) / √.4~[/quote]... but not by snagging it into another formula like a fishing hook with line dangling!

195 = (4! + (4! / .4~)) / .4

[QUOTE=cheesehead;101969]... but not by snagging it into another formula like a fishing hook with line dangling!

195 = (4! + (4! / .4~)) / .4[/QUOTE]

*grrrr* I should double- and triplecheck my formulas... :blush:

P.S.: the [URL="http://www.dwheeler.com/fourfours/"]EXTREME four fours[/URL] page lists 197 with a complexity of 6, i.e. using the "sq" function and not having found a formula with % and/or gamma. But it IS possible to do 197 using %.

Indeed.

197 = (4 - (4 + √4)%) / √4%

198 = (44 * √4) / .4~
199 = (4 + 4) / 4% - gamma(√4)
200 = 44 * 4 + 4!
201 = (4 + 4) / 4% + gamma(√4)