Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 382: | \[{20^{382}-1\over19}\] | 3 × 7 × 383 × 70018911943<11> × 473879719151<12> × 1757822589992389<16> × 206106071370102461<18> × 1529292217790386855027<22> × 32976171945298018943903<23> × 33481904873386512300019170161681<32> × 2719296984436768443179989571440201152269496972209<49> × 9138297627872532133669115036986038024460302995357320339911159668210928262651<76> × 6806043548170093585152859058434168023575926679460161252008124337816002222018380422457267311029<94> × 187767242489267577891730881514692709099278322016418252407156564835902719017617773505587579791168312191055446790439852283404522141338028009953781<144> |