Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 493: | \[{5^{493}-1\over4}\] | 59 × 409 × 35671 × 466344409 × 22125996444329<14> × 2706063109824556116887570154625476629<37> × 4702574864356903668328925230483249938419748952832641483390255334999479<70> × 864924681872067467281833690266101329894673072787282110833710290682270713227047068642369942710011558337968006073162167484471935656124921879177925834164954306021814628191176739700370664131785769890925162649131<207> |