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wu :: forums    riddles    medium (Moderators: Grimbal, Eigenray, SMQ, towr, william wu, Icarus, ThudnBlunder)    an interesting number « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: an interesting number  (Read 587 times) BNC Uberpuzzler     Gender: Posts: 1732 an interesting number   « on: Apr 5th, 2003, 11:23pm » Quote Modify Can you figure what's interesting about this number?   357686312646216567629137   Note: requires some programiing skills Hint: it's a prime number - but that's not the interesting part IP Logged How about supercalifragilisticexpialidociouspuzzler [Towr, 2007] aero_guy Senior Riddler     Gender: Posts: 513 Re: an interesting number   « Reply #1 on: Apr 6th, 2003, 5:56pm » Quote Modify At a totol guess, without checking anything: Is it all ones or something in binary? IP Logged Chronos Full Member     Gender: Posts: 288 Re: an interesting number   « Reply #2 on: Apr 6th, 2003, 7:35pm » Quote Modify No, it's not a Merseinne prime.  Its log base 2 is 78.243..., whereas if it were a Merseinne prime, the log would have to be just a hair less than an integer.   ------- There are 10 kinds of people in this world:  Those who understand binary, and those who don't. IP Logged aero_guy Senior Riddler     Gender: Posts: 513 Re: an interesting number   « Reply #3 on: Apr 7th, 2003, 12:32am » Quote Modify You read "the straight Dope?"  I just saw that quote there, thought it was hilarious. IP Logged ThudnBlunder wu::riddles Moderator Uberpuzzler The dewdrop slides into the shining Sea     Gender: Posts: 4489 Re: an interesting number   « Reply #4 on: Apr 9th, 2003, 10:50am » Quote Modify It is the largest 'restricted left-truncatable' prime number. I'd always wondered about that.......    8-)    357686312646216567629137 is prime 57686312646216567629137 is prime 7686312646216567629137 is prime 686312646216567629137 is prime 86312646216567629137 is prime 6312646216567629137 is prime 312646216567629137 is prime 12646216567629137 is prime 2646216567629137 is prime 646216567629137 is prime 46216567629137 is prime 6216567629137 is prime 216567629137 is prime 16567629137 is prime 6567629137 is prime 567629137 is prime 67629137 is prime 7629137 is prime 629137 is prime 29137 is prime 9137 is prime 137 is prime 37 is prime 7 is prime « Last Edit: Apr 9th, 2003, 2:51pm by ThudnBlunder » IP Logged THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you. Chronos Full Member     Gender: Posts: 288 Re: an interesting number   « Reply #5 on: Apr 9th, 2003, 8:11pm » Quote Modify Quote: You read "the straight Dope?"  I just saw that quote there, thought it was hilarious. Yeah, that's how I found this site.  It was the featured link on the front page one week, and I popped over to check it out. IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy => medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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