Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 258: | \[{10^{258}-1\over9}\] | 3 × 7 × 11 × 13 × 37 × 173 × 1527791 × 57009401 × 2182600451 × 210769832431<12> × 1963506722254397<16> × 2140992015395526641<19> × 407429732767505248479163<24> × 7306116556571817748755241<25> × 304768036847074491064894608014695867632997<42> × 3605696680890791382725432167911038465896663<43> × 10490974994611747848197172839956039870723832569747<50> |