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双素数  合子房

属于这两组的第一个数字:

11,11777,22111,22277,55333,77711,88811,1115533,2266633,2277733,2288833,3311177,3333311,3335533,3335599,3338899,3339977,3366677,3388999,4441111,4442233,4446677,5551111,5552233,5553311,5566111,5566333,5588111,6622999,6662233,6688111,8800999,8844499,8885533,9922111,9922277,9995599,11000111,11133377,11144477,11166611,11177711,11666111,22233311,22255999,22888111,33322111,33322999,33355577,44000111,44444999,44488111,44499977,55500077,55511999,55555111,66633377,66644111,77111999,77333777,77788811,99955111,99955577,110022299,110044999,110099777,111001199,111111199,111118877,111333377,111334499,111336611,111554477,111557711,111557777,111660011,111662233,111667711,111771199,111772277,111881111,111888899,112244477,112255511,112288333,113332277,114447733,114447799,115511111,115544411,115551133,115551199,116655599,116665511,117766333,117775577,117788833,117788899,118822999,118883311,220066699,220088833,220099333,221117711,221177711,222006611,222211333,222277799,222336677,222667799,222778877,222881177,222887711,223330099,223399333,225533311,225556633,225557777,226622777,226662211,227711777,227766611,228866777,228885511,229911133,229988111,229992211,229993333,229999111,330088333,331122299,331155511,331166111,331166699,331177333,332255111,333116699,333311177,333336611,333443399,333559999,333661199,333665599,333771133,333774433,333990077,333992299,334442233,335557711,335559977,335588833,336622333,336666611,337773311,338811199,338899111,338899999,339922111,339922211,339988877,440033777,440066611,441115511,441133111,442255999,442277111,442288111,442288333,443311333,443377999,444110099,444113399,444224411,444338833,444433111,444433333,444455111,444466333,444550033,444660077,444663377,444777733,444885599,445557799,445559911,445559999,445588111,446677711,447779911,447779999,447788777,447788899,448887799,449911199,449977111,551122277,553339933,553366633,553366999,553377733,554422277,554455333,555005533,555008899,555222299,555566699,555588811,555661111,555666611,555883333,555990077,556622111,557772211,558844999,559933333,660033377,661117799,661133399,662233111,662299111,663330011,665551111,665553377,666003311,666113311,666116699,666228811,666229999,666336677,666644411,666661111,666770011,666773311,668800999,668866111,668866999,669911111,669966677,771116611,771117733,772222277,772223399,772277111,773334433,774499933,775550099,775559999,775588811,777002299,777007799,777447733,777661111,777664499,777666677,777700333,777993311,778844777,779911999,880066699,881119999,882211199,882211333,882211999,882224477,882244333,883333111,883355111,884477777,884488333,885544999,885556699,885557711,885566699,888110099,888114499,888449999,888551177,888811999,888866611,888991111.

一些较大的示例: