Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 630: | \[{28^{630}-1\over27}\] | 32 × 11 × 192 × 29 × 31 × 37 × 43 × 71 × 113 × 127 × 211 × 271 × 421 × 631 × 757 × 1009 × 1051 × 1801 × 2269 × 2521 × 3061 × 3511 × 4621 × 8821 × 13007 × 15121 × 15991 × 29443 × 35771 × 36541 × 53951 × 59221 × 102547 × 132679 × 206501 × 444979 × 546211 × 637421 × 691651 × 734941 × 1905121 × 4422461 × 6313861 × 7302331 × 48403441 × 52000411 × 84673681 × 164630467 × 211908061 × 1994659633 × 2527757821 × 14961516151<11> × 28927311337<11> × 31384274881<11> × 55785156841<11> × 317689739221<12> × 551640495331<12> × 1266889762657<13> × 105632155735261<15> × 2005875869991701<16> × 223934956756993189<18> × 102324803053934305339531<24> × 154154940307497300453157<24> × 80504606285644335564853693<26> × 99885743242098024883367081<26> × 1114029602365666612314868561<28> × [4709941515408836299446867424818887928079073743421974134236646311530968222375672887143711667641556801483172153206099880492815341526233556286249316895217646092831879755677473572351513814662069525824415054562355159658378334043597377208405666757274698127365242462005452595643251335356787876944388982353116260673139003297549977729074672903884302570772394493184874254650901045729524438706077690233490744795288105629248176299898159565640459541<436>] |