News
Archive: June 2001
Jean-Claude Rosa & the Problem 36 | Jean-Claude Rosa has made an interesting by didactic contribution to the Problem 36. | Posted on Tuesday, June 5, 2001 | |
Carlos Gustavo Moreira solves correctly the puzzle 139 | Prof. Carlos Gustavo Moreira has corrected the initial solution to the Puzzle 139 given by Ivan M. Gudonov. | Posted on Monday, June 4, 2001 | |
Two more contributions | Z. Dong solves partially the Ngan's question in Puzzle 139.
Shyam Sunder Gupta has produced two more non-primes Rare Numbers with odd quantity of digits, so the Question Q.4 is solved and the Conjecture 23 stands still. | Posted on Sunday, June 3, 2001 | |
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