搜索号码
苏菲·日尔曼(Sophie Germain)prime  乌拉姆。

属于这两组的第一个数字:

2,,11,53,131,431,1103,2393,3593,4211,4409,5081,7043,7691,8969,10271,10691,13049,14303,16091,16421,16673,18149,20441,20939,21149,22469,22943,23099,23981,25601,25643,26879,26891,27773,27893,28499,28643,33479,33809,34283,34913,38669,39233,39443,39983,40763,41669,44501,44699,44909,46229,47279,47741,48479,49559,51521,52103,53549,56489,56921,58211,59123,59453,59621,63743,65129,66749,67181,69341,70079,74099,75479,76943,78311,78509,78653,79841,84503,87701,90971,92363,93683,98369,99173,100493,100559,102071,102149,102611,102653,103349,104231,105929,109883,111053,113189,113213,116969,117191,119891,120539,123803,125201,126713,128099,128939,129281,129401,129953,132851,135119,135893,138581,139739,144731,145643,145709,145721,147629,148079,149423,151883,156941,157799,158981,161303,162119,162593,164513,165173,165293,165449,166739,166979,168281,168293,168491,171023,173219,173549,174221,175211,179213,180161,182519,183509,186419,187721,196271,200351,202409,202973,203921,204329,204371,204461,205043,211283,215801,218171,218843,220361,220793,221411,222731,224033,224771,228461,228869,229409,232439,235979,236993,241919,241931,242393,243473,243989,247463,248639,250361,254249,256499,257249,258161,263429,263561,271829,272201,273821,275531,276821,281381,286199,287321,288833,289241,294341,296801,298013,300413,306011,306749,307523,310091,311303,311711,312989,314243,316703,318863,319919,320009,320693,322079,325751,329663,330719,332099,335171,337091,339239,340859,345599,345731,347183,347813,347933,350249,350789,352409,352949,356969,360653,360851,364751,365411,366713,367739,369191,377183,377831,379133,379751,380729,383219,385811,387683,396719,399761,402089,402761,403499,405029,407321,408701,409781,410453,411809,412073,414773,416459,418553,418751,419291,420779,422231,426311,426551,431369,433781,434963,435161,436979,438521,438941,439511,439613,439853.

一些较大的示例: