Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 405: | \[{7^{405}-1\over6}\] | 34 × 19 × 31 × 37 × 109 × 271 × 811 × 1063 × 1621 × 2377 × 2801 × 3727 × 159871 × 185221 × 2583253 × 3368791 × 4356181 × 1527007411 × 125096112091<12> × 175561876921802311<18> × 121630339096334149604401<24> × 70722308812401674174993533367023<32> × 797937984757981841530188510084780901<36> × 27647079089100876068752908298057505373446650591300028391952835991001<68> × 23734470874207003516943316250997267731230998109524120436097539229307765419910504130421<86> |