Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 387: | \[{9^{387}-1\over8}\] | 7 × 13 × 19 × 37 × 431 × 757 × 1549 × 4129 × 27091 × 113779 × 2714419 × 219461509 × 1651439941 × 2199072289 × 2877580297 × 28395735937<11> × 308842594561<12> × 1456674304231<13> × 7822354593043<13> × 18456700293426547<17> × 380808546861411923<18> × 82064241848634269407<20> × 269123363760531549673<21> × 13099258990708662902487571<26> × 912851565662857110894244969<27> × 25908384471606078520990048820841997099<38> × 19883793469378176373136546038842994063371691807806092869125056219155739754744344670610513<89> |