[HOME] [datelab] Prime dates ================================== 1999-11-19, Magnus Bodin <magnus@bodin.org> The "prime date" 1999-11-19 has all prime numbers in it. In that respect that both 1999, 11, and 19 is a prime number. The next time THAT will happen is 2003-02-02. (On each prime year, there is actually 82 prime dates.) Then, if you write the date as one single number, then it is a lot of them. This is just a few examples: (where it is primes in at least 2 of the columns) YYYYMMDD MMDDYYYY DDMMYYYY 19991129 11291999 19991227 12271999 01102001 10012001 20010127 01272001 01312001 31012001 20010209 09022001 20010223 23022001 20010307 03072001 20010323 23032001 04042001 04042001 05152001 15052001 20010517 05172001 05262001 26052001 06082001 08062001 20010701 07012001 07102001 10072001 07122001 12072001 07182001 18072001 08062001 06082001 20010811 08112001 08232001 23082001 20010929 09292001 20011001 10012001 01102001 20011007 10072001 07102001 10192001 19102001 10272001 27102001 10282001 28102001 11182001 18112001 12072001 07122001 20030107 07012003 01142003 14012003 20030207 02072003 02132003 13022003 02162003 16022003 04222003 22042003 06062003 06062003 06082003 08062003 07072003 07072003 20030711 07112003 07232003 23072003 08062003 06082003 20030809 08092003 08182003 18082003 08192003 19082003 08282003 28082003 09092003 09092003 09302003 30092003 10102003 10102003 10162003 16102003 20031029 10292003 20031101 01112003 11242003 24112003 20031217 12172003 20070101 01012007 01012007 20070103 01032007 03012007 02182007 18022007 03012007 01032007 03222007 22032007 04192007 19042007 20070509 05092007 06082007 08062007 06262007 26062007 07072007 07072007 07122007 12072007 07312007 31072007 08062007 06082007 08182007 18082007 20070901 09012007 09262007 26092007 10102007 10102007 11112007 11112007 12072007 07122007 01012009 01012009 01072009 07012009 20090129 01292009 02152009 15022009 20090219 02192009 19022009 02212009 21022009 02252009 25022009 20090401 04012009 20090407 04072009 04282009 28042009 05192009 19052009 20090527 05272009 20090611 06112009 07012009 01072009 20090711 07112009 20090729 29072009 20090827 27082009 09262009 26092009 10102009 10102009 10192009 19102009 10202009 20102009 12122009 12122009 12272009 27122009 01022011 02012011 01112011 11012011 02012011 01022011 02022011 02022011 03272011 27032011 20110429 04292011 05222011 22052011 20110523 23052011 05252011 25052011 20110603 03062011 07142011 14072011 07212011 21072011 20110807 07082011 09092011 09092011 20110927 27092011 20111027 10272011 11012011 01112011 11112011 11112011 11142011 14112011 11262011 26112011 20111213 12132011 01192013 19012013 20130203 02032013 02122013 12022013 20130413 13042013 04282013 28042013 04302013 30042013 05082013 08052013 20130527 05272013 27052013 07122013 12072013 07302013 30072013 08052013 05082013 08082013 08082013 20130829 29082013 09222013 22092013 09252013 25092013 10132013 13102013 10222013 22102013 20131031 31102013 12022013 02122013 20131207 12072013 07122013 20131211 12112013 12222013 22122013 01112017 11012017 20170121 01212017 02022017 02022017 02042017 04022017 20170219 02192017 20170223 02232017 23022017 20170301 03012017 03092017 09032017 03102017 10032017 20170331 31032017 04022017 02042017 20170421 21042017 20170511 05112017 11052017 06252017 25062017 20170627 06272017 20170807 07082017 08082017 08082017 20170831 31082017 20170903 09032017 03092017 09272017 27092017 10032017 03102017 20171017 10172017 20171101 11012017 01112017 11052017 05112017 20171201 12012017 20171219 12192017 12242017 24122017 01222019 22012019 01302019 30012019 02022019 02022019 20190227 02272019 20190301 03012019 04042019 04042019 05172019 17052019 20190523 23052019 20190719 07192019 20190811 08112019 08262019 26082019 09142019 14092019 10102019 10102019 10152019 15102019 10242019 24102019 20191109 11092019 11112019 11112019 11182019 18112019 01102021 10012021 01252021 25012021 20210131 31012021 02042021 04022021 20210317 03172021 20210401 01042021 04022021 02042021 04162021 16042021 04192021 19042021 20210513 13052021 07192021 19072021 20210803 03082021 08212021 21082021 20210831 31082021 20210923 09232021 23092021 20210929 09292021 20211001 10012021 01102021 10132021 13102021 20211031 10312021 20211109 11092021 11192021 19112021 20211127 27112021 20211209 09122021 12122021 12122021 20211221 12212021 12262021 26122021 (Updated 2015-10-26 to include some dates after 2001) [HOME] [datelab]