Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 517: | \[{9^{517}-1\over8}\] | 23 × 67 × 661 × 1223 × 3851 × 16921 × 21997 × 256057 × 5112661 × 96656723 × 1534179947851<13> × 18121754584561<14> × 11564421035953127<17> × 195823481748025157463422904654781<33> × 439353102824911497759602166124705290731<39> × 101594938593498193485713234840114778164168663847714149034344787245701990201570015907057074635739614123343291<108> × 39250155701772485605404133448977335467591607421104172257352686216344690452835921743925495997331753828150525380859<113> × 110582335504499023420193738831204436303562234622785352330412196778153030043660971684441387633094950503099807268663433937<120> |