News
Archive: March 2000
Puzzle 85 | Luis Rodríguez has gotten a qualification of 175% for this puzzle. See Puzzle 85
| Posted on Wednesday, March 29, 2000 | |
Puzzle 85, improved qualification | Luis Rodríguez has pushed up the better qualification to 120% with a light modification to his own original solution. | Posted on Sunday, March 26, 2000 | |
The probable 6th prime-repunit | Harvey Dubner found, Set. 99, that R(49081) is probable prime. (better later than never) | Posted on Saturday, March 25, 2000 | |
Puzzle 86, new solution | Jud McCranie has gotten a new entry for the new solutions for K=3 asked in the Puzzle 86 | Posted on Sunday, March 19, 2000 | |
Yves Gallot prime record | Yves Gallot has found the 6/3/2000 the "Generalized Fermat Prime" 167176^(2^15)+1 w/171153 digits after 6 months of search running Proth 5.4 on about 10 PII/400. See the status of the search of these primes here. This is the largest prime obtained using the Yves Gallot popular code, Proth.exe
| Posted on Saturday, March 18, 2000 | |
Improving solutions of puzzles | Felice Russo improved the initial solution for the Puzzle 85. James Benfield improved his own solution for the 4x4x4 case of the Puzzle 1. | Posted on Tuesday, March 14, 2000 | |
A 4x4 SG prime magic squares for Puzzle 81 | I have received (8/3/2000) by snail-mail a 4x4 prime magic square Sophie-Germain type, sent by John E. Everett, form Waynesboro, VA: | Posted on Thursday, March 9, 2000 | |
Puzzle 84, part 2) | Chris Nash has probed that this kind of sets contain infinite members. As an extra bonus his "existence proof" provides a clue to obtain one new member each at a time (unfortunately the new member produced by his "method" is not the least member). So, the search for the least member is justified and still not solved... | Posted on Saturday, March 4, 2000 | |
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