Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 332: | \[{20^{332}-1\over19}\] | 3 × 7 × 167 × 401 × 997 × 343289 × 9625843 × 27817851030769<14> × 31071542862785053<17> × 2871487521092731391<19> × 67699047341756372583397<23> × 414249085636225553185611071<27> × 322312254747999902362170451754129950453<39> × 1538310379327087356765985018066468033557956350069<49> × 83455547904032715573705163300922396904169447963190045702401625064417196564490790868999751009<92> × 3450782245418370279848426808457001867619857847701049085429316185235323537750894081220168598532688234571474780420123846368385618285721<133> |