GreekBitcoin
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Activity: 1428
Merit: 1001
getmonero.org
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January 22, 2014, 05:14:15 AM |
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Thank you very much
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In order to get the maximum amount of activity points possible, you just need to post once per day on average. Skipping days is OK as long as you maintain the average.
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raspcoin
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January 26, 2014, 07:43:20 PM |
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Primecoin has found a new record 2CC of length 13 ( block 375981). Ironically, it has exactly as many digits as the previous record ( block 159217). I have updated the table to reflect the progress of the coins. XPM DTC BEK CDN
6 1CC -- -- 89 99 6 2CC 134 90 91 96 6 TWN 97 84 89 96
7 1CC 244 100 104 103 7 2CC 208 103 103 112 7 TWN 268 99 105 98
8 1CC 167 103 109 106 8 2CC 183 106 106 112 8 TWN 172 110 108 106
9 1CC 151 115 107 108 9 2CC 167 118 104 108 9 TWN 163 114 103 108
10 1CC 146 109 101 109 10 2CC 137 108 101 105 10 TWN 138 112 100 105
11 1CC 140 103 96 100 11 2CC 127 102 -- 95 11 TWN 123 106 -- 100
12 1CC 110 98 -- -- 12 2CC 109 92 -- -- 12 TWN 106 99 -- --
13 1CC 107 -- -- -- 13 2CC 94 -- -- -- 13 TWN 105 -- -- --
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sepro
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Activity: 15
Merit: 0
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February 01, 2014, 10:52:17 PM |
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raspcoin
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February 04, 2014, 02:03:43 AM |
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There are now five Cunningham-based coins. XPM DTC BEK CDN pNut
13 1CC 107 -- -- -- -- 13 2CC 94 -- -- -- -- 13 TWN 105 -- -- -- --
12 1CC 110 98 -- -- -- 12 2CC 109 92 -- -- -- 12 TWN 107 99 -- -- --
11 1CC 140 103 96 100 -- 11 2CC 127 102 -- 95 -- 11 TWN 123 106 -- 100 --
10 1CC 146 109 101 109 -- 10 2CC 137 108 101 105 -- 10 TWN 138 112 100 105 --
9 1CC 151 115 107 108 96 9 2CC 167 118 104 108 96 9 TWN 163 114 105 108 96
8 1CC 167 103 109 106 98 8 2CC 183 106 108 112 107 8 TWN 172 110 108 106 101
7 1CC 244 100 104 103 99 7 2CC 208 103 103 112 103 7 TWN 268 99 105 98 108
6 1CC -- -- 89 99 103 6 2CC 134 90 91 96 110 6 TWN 97 84 89 96 105
5 1CC -- -- -- -- 108 5 2CC -- -- -- -- 112 5 TWN -- -- -- -- 108
4 1CC -- -- -- -- -- 4 2CC -- -- -- -- -- 4 TWN -- -- -- -- 92
diff 10.41 9.75 8.91 8.98 7.68 blocks 388791 175108 109084 97641 38482
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raspcoin
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April 07, 2014, 03:46:43 AM |
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In this context, CDN refers to CDNcoin. An official currency symbol is not the only thing that coin is missing.
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nutildah
Legendary
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Activity: 2982
Merit: 7984
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August 04, 2015, 06:59:30 PM |
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Now _this_ is a coin that actually _does_ something!
Out of the thousands of coins that have come since, I doubt any have had an equal impact on the world of scientific research. Of course, 999 of those devs were just looking to get rich by lying to the unsuspecting. Now we know better.
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nutildah
Legendary
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Activity: 2982
Merit: 7984
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August 05, 2015, 01:33:21 AM |
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I just can't believe nobody was inspired by the fact that somebody once made a coin that was useful to society. They probably were, just not this year.
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hardcoreprime
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September 09, 2016, 12:30:33 PM |
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Anyone know how to find out if there have been any new prime number found lately? Is there a way to check from the wallet?
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BartJSimpsom
Newbie
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Activity: 8
Merit: 0
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February 10, 2017, 09:35:34 AM |
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You can use listtopprimes to find the top primes for each form which were found by Primecoin, e.g "listtopprimes 14 1CC" to get the largest Cunningham chains of first kind of length 14 (abbreviated as CC14f).
As I've just seen today, Primecoin broke the record for CC14f just two weeks ago. This is the first world record for Primecoin since more than 2 years.
2017-01-25: CC14f with 96 digits: 814204479584287721291003734102406590210007590854164398588152723240001514789312*47#-1
Update of my Cunningham chain record list will follow shortly.
Regards, Dirk
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Tc_Mad
Newbie
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Activity: 1
Merit: 0
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April 28, 2017, 04:59:43 AM |
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You can use listtopprimes to find the top primes for each form which were found by Primecoin, e.g "listtopprimes 14 1CC" to get the largest Cunningham chains of first kind of length 14 (abbreviated as CC14f).
As I've just seen today, Primecoin broke the record for CC14f just two weeks ago. This is the first world record for Primecoin since more than 2 years.
2017-01-25: CC14f with 96 digits: 814204479584287721291003734102406590210007590854164398588152723240001514789312*47#-1
Update of my Cunningham chain record list will follow shortly.
Regards, Dirk
Did this coin die? Why? I feel like it's a hidden gem if someone decides to market it especially in mathematics departments around the world.
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onemanatatime
Full Member
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Activity: 294
Merit: 101
Aluna.Social
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April 28, 2017, 05:11:42 AM |
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How often does XPM find a new prime number? Does it get longer to find each new prime number?
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This time it's different.
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rdebourbon
Member
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Activity: 65
Merit: 10
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May 08, 2017, 11:43:47 AM |
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How often does XPM find a new prime number? Does it get longer to find each new prime number?
A new prime chain is found with each block (~1minute). Within a prime chain, each number is prime and is larger than the one before. Currently we're looking for chains with at least 10 consecutive primes. The first prime in the chain is guaranteed to be at least 256bits long - but could actually be much much bigger depending on the primorial and multiplier chosen. Miners don't tend to look for larger primes as the maths involved takes longer - hence mining is slower. This is a very intellectually challenging coin to write a good miner for - there are several conflicting aspects that directly influence mining speed and pretty much every design decision becomes a trade off For example: 1. Mining with a large primorial increases the base prime probability at the cost of fundamentally larger numbers that are slower to verify and work with. 2. Mining with lots of primes increases the sieve accuracy and reduces the number of false positives that then get passed through to chain length determination, but using too many primes above a certain threshold removes so few candidates that its actually faster to deal with false positives!
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XPM:AUwKMCYCacE6Jq1rsLcSEHSNiohHVVSiWv LTC:LV7VHT3oGWQzG9EKjvSXd3eokgNXj6ciFE BTC:1Fph7y622HJ5Cwq4bkzfeZXWep2Jyi5kp7
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bt2084
Member
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Activity: 63
Merit: 10
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March 30, 2018, 02:39:26 AM |
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This is one of the coolest coins out there yet no one really seems to be leading it's marketing anymore. Is it still active? It still trades so I wonder if anyone is mining it, and where are the best optimized miners for it? Seems like some graduate school professor could take this thing over and make it last decades.
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theoulis
Legendary
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Activity: 1064
Merit: 1003
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September 15, 2018, 03:58:36 PM |
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