Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 625: | \[{3^{625}-1\over2}\] | 112 × 251 × 8951 × 391151 × 667501 × 358291751 × 14781691751<11> × 391632555001<12> × 989947158849251<15> × 1880420669727399359827972501<28> × 257221971817419112385228087519202709483833420607221254579502990135771251<72> × 112619179702674829064884553285812509307933773764869026935121072882679330426958965375429903438190221908389594199787464711946148729091251<135> |