Topic: [XPM] Primecoin Record Books - page 9. (Read 34592 times)
Hm, none of those are mine so far.
It's a php function gmp_prob_prime which is part of the GMP (GNU Multiple Precision) extension. It uses Miller-Rabin's probabilistic test to check if a number is a prime.
Good job Petrified! What primality test you are testing on your crawler?
Awesome! Not mine either, unfortunately.
Both fail on #9 in my Block Crawler:
Block 2044
Block 5355
Of course that is dependent of my code for generating the chain being correct.
Block 2044
Block 5355
Of course that is dependent of my code for generating the chain being correct.
You miss the first prime. The first prime is origin+1 for 2CC.
Fixed.
Both fail on #9 in my Block Crawler:
Block 2044
Block 5355
Of course that is dependent of my code for generating the chain being correct.
Block 2044
Block 5355
Of course that is dependent of my code for generating the chain being correct.
You miss the first prime. The first prime is origin+1 for 2CC.
Both fail on #9 in my Block Crawler:
Block 2044
Block 5355
Of course that is dependent of my code for generating the chain being correct.
Block 2044
Block 5355
Of course that is dependent of my code for generating the chain being correct.
You tested the centers, you need to test the chain results. In Sunny's paper it describes how to get them, or here:
http://en.wikipedia.org/wiki/Cunningham_chain
You are quite right. However, the first probable prime still fails.
The positive result is:
Code:
Primality testing 65004063504559525007738276505391185322137155270201199057971076511954045665048965173722209501026611156768988779138868408914387452650147975793533060274322762631 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N-1 test using base 7
Running N+1 test using discriminant 19, base 1+sqrt(19)
Calling N-1 BLS with factored part 49.24% and helper 2.29% (150.19% proof)
65004063504559525007738276505391185322137155270201199057971076511954045665048965173722209501026611156768988779138868408914387452650147975793533060274322762631 is prime! (0.0250s+0.0033s)
Amazing result. I was close - but no cigar.
Impressive!
But not mine :S
But not mine :S
Woot! Not sure it's me, I sent some stuff I mined on windows to my linux wallet and then destroyed the windows wallet 
Anyway, very cool
Anyway, very cool
This is great!
congrats！
You tested the centers, you need to test the chain results. In Sunny's paper it describes how to get them, or here:
http://en.wikipedia.org/wiki/Cunningham_chain
You are quite right. However, the first probable prime still fails.
The positive result is:
Code:
Primality testing 65004063504559525007738276505391185322137155270201199057971076511954045665048965173722209501026611156768988779138868408914387452650147975793533060274322762631 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N-1 test using base 7
Running N+1 test using discriminant 19, base 1+sqrt(19)
Calling N-1 BLS with factored part 49.24% and helper 2.29% (150.19% proof)
65004063504559525007738276505391185322137155270201199057971076511954045665048965173722209501026611156768988779138868408914387452650147975793533060274322762631 is prime! (0.0250s+0.0033s)
Has it been confirmed that these are valid prime chains? If I'm not mistaken (please correct me if I am), primecoin only checks for probable primality.
I used Primeform to test these primes - results below
Code:
15746436948707162347681191092622506406480521554672382866529113365451686336191616303820985251295842020684640523576306336183730859560 - Evaluator failed
Code:
65004063504559525007738276505391185322137155270201199057971076511954045665048965173722209501026611156768988779138868408914387452650147975793533060274322762630 is composite: [27F4F267A7BEF21D] (0.0014s+0.0004s)
You tested the centers, you need to test the chain results. In Sunny's paper it describes how to get them, or here:
http://en.wikipedia.org/wiki/Cunningham_chain
Has it been confirmed that these are valid prime chains? If I'm not mistaken (please correct me if I am), primecoin only checks for probable primality.
I used Primeform to test these primes - results below
Code:
15746436948707162347681191092622506406480521554672382866529113365451686336191616303820985251295842020684640523576306336183730859560 - Evaluator failed
Code:
65004063504559525007738276505391185322137155270201199057971076511954045665048965173722209501026611156768988779138868408914387452650147975793533060274322762630 is composite: [27F4F267A7BEF21D] (0.0014s+0.0004s)
Has it been confirmed that these are valid prime chains? If I'm not mistaken (please correct me if I am), primecoin only checks for probable primality.
Indeed. Nevertheless, great results for only 3 days of mining!
Has it been confirmed that these are valid prime chains? If I'm not mistaken (please correct me if I am), primecoin only checks for probable primality.
This is pretty rad. I am curious to see what probability tosses us!
Top notch!
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