Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 520: | \[{10^{520}-1\over9}\] | 11 × 41 × 53 × 73 × 79 × 101 × 131 × 137 × 271 × 521 × 859 × 3541 × 9091 × 27961 × 1580801 × 1676321 × 2311921 × 265371653 × 1058313049 × 5964848081<10> × 162503518711<12> × 1031498834064949381<19> × 12763852652999774041<20> × 1900381976777332243781<22> × 12119730504567977254081<23> × 2737820036624672031089487008281<31> × 5538396997364024056286510640780600481<37> × 120920505705101252491925533049923433521<39> × 632527440202150745090622412245443923049201<42> × 8396862596258693901610602298557167100076327481<46> × 175067038724863563854848045107963303611128869041<48> × 6279815040943032407714418831204387527919360005277361<52> × 7523020307427066273763456609903850552762967576510974081<55> |