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UnsolvedProblems · Unsolved Problems in Number Theory,

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Activity within 7 days:

4 New Members - 9 New Messages

Description

This group is for discussion of the unsolved problems in number theory, logic, and cryptography which are featured on the web site

http://UnsolvedProblems.org

Problems include the existence (or otherwise) of a perfect cuboid, the chromatic number of the plane, the discrete log problem, Grimm's conjecture, the ABC conjecture, Diffie-Hellman, the Goldbach conjecture, the twin primes conjecture, the Dorabella cipher (aka the Elgar cipher), the RSA challenge, the existence (or otherwise) of an odd perfect number, the existence (or otherwise) of a magic square of squares, the Collatz conjecture, the Beal conjecture, Legendre's conjecture, the Riemann hypothesis, the Zodiac 340 cipher, and the Voynich manuscript, amongst others.

The web site describes the problems and offers potential solvers the opportunity to have their solutions published, while this group facilitates questions and discussion.

Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2013 60 98 94 23 13
2012 14 35 14 20 91 48 40 138 82 30 94 46
2011 17 13 121 1 5 14 98 5 16 33 20 9
2010 13 9 1 2 1 1 16 7 4 5 3
2009 3 1 4 18 6 3 2
2008 1 2 2 5 1
2007 5 8 1 6 10 1 2
2006 2

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