Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 549: | \[{8^{549}-1\over7}\] | 73 × 367 × 38431 × 55633 × 262657 × 1386525709821079<16> × 190183230986460463<18> × 2305843009213693951<19> × 37201708625305146303973352041<29> × 38640785003914161847393041706513240920778826121806619738430718567496016974391844765260849<89> × [67978885200710900687354208811252030656593169767892356622695385230019566083848382211944402926116216456398163240855361568437257365933380601555075237351388554670623863891489726658071193327055934190040691326958662096736350017783437256868754634140087946049751975935582421143673210746063668155051565862441076632527<308>] |