Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 698: | \[{3^{698}-1\over2}\] | 22 × 5572311991<10> × 7407454871941<13> × 42600901019349064015118607066649767424888149475437965293<56> × 94042850889984510998289152320438541798532018021653956283741193211654025280185459<80> × 174165493740875256464746388999480533990944334266849687054611524922878840708206608860499<87> × 4657305025080344007974247503325601566580930335741530150167808502071678111619481718433187<88> |