Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 280: | \[{23^{280}-1\over22}\] | 25 × 3 × 52 × 29 × 31 × 41 × 53 × 61 × 71 × 211 × 281 × 673 × 701 × 941 × 2969 × 5081 × 10781 × 52291 × 96601 × 139921 × 272341 × 292561 × 598193 × 3391669 × 5336717 × 12968551 × 6696671101<10> × 15716677201<11> × 110350430401<12> × 1206964869343609001<19> × 1434849920564332861<19> × 10923620781049180674401<23> × 29228211639650804163601<23> × 480249047846803230704957710381921<33> × 1319762353105502239973877413549107890281<40> × 2378210040037186253815167278790037317281<40> × 13131221858142021015567876953311693764168501124139647820126457015521<68> |