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Re: Five Fives Game
Posted: Thu Apr 04, 2013 4:41 pm
by maasman
Ffraid wrote:Well, haven't you guys been busy! My only objection is with 219. I think you meant ⌈√(5!!)⌉ = 4, not ⌊√(5!!)⌋
fixed
231 = 5! + 5! - (5 + ⌊√5⌋ x ⌊√5⌋)
231 = 120 + 120 - 9
231 = 231
Re: Five Fives Game
Posted: Thu Apr 04, 2013 4:43 pm
by crispybits
232 = (Γ5 + 5) x (⌊√5⌋ x ⌊√5⌋ x ⌊√5⌋)
232 = (24 + 5) x (2 x 2 x 2)
232 = 29 x 8
232 = 232
Re: Five Fives Game
Posted: Fri Apr 05, 2013 9:05 am
by maasman
233 = 5! + 5! + 5 - (⌊√(5!!)⌋ x ⌈√(5!!)⌉)
233 = 245 - (3 x 4)
233 = 233
Re: Five Fives Game
Posted: Fri Apr 05, 2013 9:35 am
by crispybits
234 = (Γ5 + 5 + 5 + 5) x ⌈√5⌉!
234 = (24 + 5 + 5 + 5) x 3!
234 = 39 x 6
234 = 234
Re: Five Fives Game
Posted: Fri Apr 05, 2013 9:38 am
by maasman
235 = 5! + 5! - (5 x 5/5)
235 = 240 - 5
235 = 235
Re: Five Fives Game
Posted: Fri Apr 05, 2013 9:42 am
by crispybits
236 = (5! - ⌊√5⌋) x (5 / 5) x ⌊√5⌋
236 = (120 - 2) x 1 x 2
236 = 118 x 2
236 = 236
Re: Five Fives Game
Posted: Fri Apr 05, 2013 4:02 pm
by maasman
237 = 5! + 5! - (5/5 + ⌊√5⌋)
237 = 240 - 3
237 = 237
Re: Five Fives Game
Posted: Fri Apr 05, 2013 4:19 pm
by crispybits
238 = (5!! + ⌊√5⌋) x (5!! - 5/5)
238 = (15 + 2) x (15 - 1)
238 = 17 x 14
238 = 238
Re: Five Fives Game
Posted: Fri Apr 05, 2013 6:34 pm
by Ffraid
239 = 5! + 5! - 5/(√5*√5)
239 = 120 + 120 - 5/5
239 = 240 -1
239 = 239
Re: Five Fives Game
Posted: Fri Apr 05, 2013 6:38 pm
by crispybits
Don't often cheat like this but
240 = 5! + 5! x 5/(√5*√5)
240 = 120 + 120 x 5/5
240 = 240 x 1
240 = 240
Re: Five Fives Game
Posted: Fri Apr 05, 2013 9:29 pm
by Ffraid
crispybits wrote:Don't often cheat like this but
240 = 5! + 5! x 5/(√5*√5)
240 = 120 + 120 x 5/5
240 = 240 x 1
240 = 240
That's not cheating, that's the one that comes to mind most naturally (at least to my mind)! And here it is again in it's third incarnation:
241 = 5! + 5! + 5/(√5*√5)
241 = 120 + 120 + 5/5
241 = 240 + 1
241 = 241
Re: Five Fives Game
Posted: Sat Apr 06, 2013 4:27 am
by maasman
242 = 5! + 5! + 5 - 5!!/5
242 = 120 + 120 + 5 - 3
242 = 242
Re: Five Fives Game
Posted: Sat Apr 06, 2013 4:54 am
by crispybits
243 = ⌈√5⌉ x ⌈√5⌉ x ⌈√5⌉ x ⌈√5⌉ x ⌈√5⌉
243 = 3 x 3 x 3 x 3 x 3
243 = 243
Re: Five Fives Game
Posted: Sat Apr 06, 2013 8:39 am
by maxfaraday
how do you guys write the upper/lower square root?
Re: Five Fives Game
Posted: Sat Apr 06, 2013 8:48 am
by crispybits
Copy/paste
Re: Five Fives Game
Posted: Sat Apr 06, 2013 9:09 am
by maxfaraday
crispybits wrote:Copy/paste
Yeah, of course, I had already thought about it, but what I wanted to know is what's the code you have to type (Alt+something).
Re: Five Fives Game
Posted: Sat Apr 06, 2013 9:13 am
by crispybits
No idea - I use Ctrl+C and Ctrl+V - sorry!
It's been asked before too about 5-6 pages ago maybe and the general consensus was the same.
Re: Five Fives Game
Posted: Sat Apr 06, 2013 9:19 am
by maxfaraday
244 = 5² * (5+5) - ⌈√5⌉ -⌈√5⌉
244 = 25 * 10 - 3 - 3
244 = 244
Re: Five Fives Game
Posted: Sat Apr 06, 2013 10:10 am
by crispybits
You can't use a 2
For reference, here's a list of how to get various numbers with one five if you want it max:
⌊√⌊√5⌋⌋ = 1
⌊√5⌋ = 2
⌈√5⌉ = 3
⌊√5!!⌋ = 4
5 = 5
⌈√5⌉! = 6
⌈√(⌈√5⌉!)!!⌉ = 7
⌊√5!!⌋!! = 8
⌊√5!⌋ = 10
⌈√5!⌉ = 11
⌈√5⌉$ = 12
5!! = 15
Γ5 = 24
5# = 30
(⌈√5⌉!)!! = 48
⌈√(⌈√5⌉!)!!⌉!! = 105
5! = 120
Re: Five Fives Game
Posted: Sat Apr 06, 2013 10:28 am
by maxfaraday
crispybits wrote:You can't use a 2
For reference, here's a list of how to get various numbers with one five if you want it max:
⌊√⌊√5⌋⌋ = 1
⌊√5⌋ = 2
⌈√5⌉ = 3
⌊√5!!⌋ = 4
5 = 5
⌈√5⌉! = 6
⌈√(⌈√5⌉!)!!⌉ = 7
⌊√5!!⌋!! = 8
⌊√5!⌋ = 10
⌈√5!⌉ = 11
⌈√5⌉$ = 12
5!! = 15
Γ5 = 24
5# = 30
(⌈√5⌉!)!! = 48
⌈√(⌈√5⌉!)!!⌉!! = 105
5! = 120
Huhh...
5² = 5^2, and √5 = 5^(1/2), so i don't know why I couldn't use 5².
Anyways,
244 = 5! + 5! + ⌊√5!⌋ - ⌈√5⌉ -⌈√5⌉
244 = 120 +120 + 10 - 3 - 3
244 = 244
Re: Five Fives Game
Posted: Sat Apr 06, 2013 10:39 am
by crispybits
It's just the rules - the only numbers you're allowed to use are 5 5s, the rest has to be symbols.
245 = (Γ5 + Γ5 + 5/5) x 5
245 = (24 + 24 + 1) x 5
245 = 49 x 5
245 = 245
Re: Five Fives Game
Posted: Sat Apr 06, 2013 12:19 pm
by maxfaraday
246 = Γ5 * (5 + 5) + ⌈√5⌉ +⌈√5⌉
246 = 24 * 10 + 3 + 3
246 = 246
This game is way to easy; it takes me more time to type the answer than to find it.
Re: Five Fives Game
Posted: Sat Apr 06, 2013 2:02 pm
by crispybits
You're doing even numbers and we haven't hit a horrible prime yet - it will get tough all of a sudden now and then - the fun is trying to find unexpected ways to get there for the easy ones. Look back, I think it was 157 - yep it was near the bottom of page 11 (easier now we've all had more practice finding numbers you can get to with just one 5 but it proved a stumbling block for a bit back then)
247 = (5 + 5 + ⌈√5⌉) x (Γ5 - 5)
247 = (5 + 5 + 3) x (24 - 5)
247 = 13 x 19
247 = 247
Re: Five Fives Game
Posted: Sat Apr 06, 2013 3:02 pm
by crispybits
We could always step it up a level, to be frank almost anything up to maybe 1000 is going to be fairly easy now, so start over from 1001 to make it more of a challenge?
Or just do the primes in between where we are and 1000 first? Here's a list for reference:
251
257
263
269
271
277
281
283
293
307
311
313
317
331
337
347
349
353
359
367
373
379
383
389
397
401
409
419
421
431
433
439
443
449
457
461
463
467
479
487
491
499
503
509
521
523
541
547
557
563
569
571
577
587
593
599
601
607
613
617
619
631
641
643
647
653
659
661
673
677
683
691
701
709
719
727
733
739
743
751
757
761
769
773
787
797
809
811
821
823
827
829
839
853
857
859
863
877
881
883
887
907
911
919
929
937
941
947
953
967
971
977
983
991
997
Re: Five Fives Game
Posted: Sun Apr 07, 2013 4:16 am
by maasman
I'm fine with primes honestly:
251 = 5! + 5! + ⌈√5!!⌉ + ⌈√5⌉ +⌈√5!!⌉
251 = 120 + 120 + 4 + 3 + 4
251 = 251
But just in case:
248 = 5! + 5! + 5 + 5!!/5
248 = 120 + 120 + 5 + 3
248 = 248