| digits | factor | from | B1 | sigma | date | who |
| 54 | 113944651856655107794996103150041939333993926230123191 | (3^64-1)^63+1 | 15e6 | 718797804 | 21 Mar 2000 | N. Lygeros/M. Mizony |
| 50 | 35980284696866628612408320286235289116690009072507 | 721*2^721+1 | 11e6 | 1337289549 | 18 Oct 2000 | P. Leyland |
| 50 | 30594391662286892147783273883147685710094959898591 | 966^55+1 | 3e6 | 2072145647 | 04 Nov 2000 | D. Miller |
| 49 | 7646314959368848394486675357078883614676365385821 | 2^1510+1 | 3e6 | 1528600581 | 20 Aug 2000 | P. Zimmermann |
| 49 | 6858978676339837818226335228196735278989366499151 | 3^475+1 | 3e6 | 834211658 | 14 Sep 2000 | P. Leyland |
| 49 | 1368635346986648651098441242784461410529545236877 | 11^223-1 | 3e6 | 196349816 | 25 Jul 2000 | A. Brown |
| 49 | 1165121220595973490028272789835616165757454893337 | 2^843+1 | 20111222 | 1218968586 | 24 Jul 2000 | D. Doligez |
| 48 | 459988434780718651547146575150088880586568119521 | 2^884+1 | 36e6 | 1882853569 | 15 Apr 2000 | P. Zimmermann |
| 48 | 275079728776659654087282311943749255119521753433 | 3^478+1 | 3e6 | 738531547 | 18 Mar 2000 | P. Leyland |
| 48 | 259666046866989553234678839986188137176834471947 | 6^253-1 | 3e6 | 1609619575 | 10 Jul 2000 | P. Zimmermann |