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wu :: forums    riddles    medium (Moderators: Eigenray, ThudnBlunder, towr, Icarus, SMQ, Grimbal, william wu) Pages: 1 ... 23 24 25 26 27  ...  61 Start new topic    Subject Started by Replies Views Last post power of 2 starting with 7 gkwal 4 490 Jul 17th, 2007, 4:01am by towr prime number with all digits equal gkwal 2 252 Jul 17th, 2007, 1:53am by towr 4 numbers product  = a perfect integer power gkwal 1 212 Jul 17th, 2007, 1:45am by towr What is the sequence? Fallen_Angel 0 264 Jul 16th, 2007, 10:58am by Fallen_Angel A Prime Number And Power Puzzle K Sengupta 4 263 Jul 15th, 2007, 10:13pm by Archae 2 = 1 mikedagr8 2 384 Jul 13th, 2007, 7:29pm by mikedagr8 Conway Sequence mikedagr8 0 360 Jul 13th, 2007, 7:51am by mikedagr8 2007 tony123 5 701 Jul 11th, 2007, 9:45am by pex MEDIUM: TWO-CHILD FAMILY I & II « Pages 1 2 » S. Owen 33 8469 Jul 10th, 2007, 5:50pm by rmsgrey Re: find 2 tony123 2 622 Jul 10th, 2007, 2:48pm by denis find tony123 6 540 Jul 7th, 2007, 7:20pm by FiBsTeR Fox VS Duck Variation chetangarg 7 671 Jul 6th, 2007, 12:52am by towr find sum tony123 21 817 Jul 3rd, 2007, 5:33pm by SWF A 2080 Puzzle K Sengupta 2 763 Jul 2nd, 2007, 8:31am by K Sengupta solve 3 tony123 1 278 Jul 2nd, 2007, 8:25am by K Sengupta find x   tony123 3 339 Jul 2nd, 2007, 1:37am by towr atriangle tony123 0 203 Jun 30th, 2007, 4:04am by tony123 solve 2 tony123 1 224 Jun 29th, 2007, 12:01pm by jollytall find x tony123 6 452 Jun 29th, 2007, 9:10am by Grimbal prove tony123 4 1068 Jun 29th, 2007, 7:32am by K Sengupta solve tony123 4 493 Jun 28th, 2007, 6:46pm by K Sengupta prove the rituo= sqrt 2 tony123 19 2834 Jun 28th, 2007, 10:56am by pex Four Integers And Inequality Problem K Sengupta 6 556 Jun 24th, 2007, 12:47pm by FiBsTeR An Integer Triplet Puzzle K Sengupta 3 1049 Jun 23rd, 2007, 8:00pm by Eigenray An Even Decimal Digit Puzzle K Sengupta 3 649 Jun 23rd, 2007, 1:11am by K Sengupta A Reciprocal And maximum Value Puzzle K Sengupta 3 496 Jun 22nd, 2007, 2:10am by K Sengupta Certain Composite Catalans Aryabhatta 3 396 Jun 21st, 2007, 10:20am by Aryabhatta n-ugly numbers and perfect squares Aryabhatta 8 896 Jun 21st, 2007, 10:11am by Aryabhatta Equals areas => centroid Aryabhatta 2 517 Jun 21st, 2007, 10:10am by Aryabhatta 3 spiders and a psychic fly and five prisoners chetangarg 2 919 Jun 21st, 2007, 7:18am by towr Pages: 1 ... 23 24 25 26 27  ...  61 Start new topic  Normal Topic Hot Topic (More than 15 Replies) Very Hot Topic (More than 25 Replies) Locked Topic Sticky Topic Sticky Locked Topic 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

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