Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 280: | \[{17^{280}-1\over16}\] | 23 × 32 × 52 × 11 × 29 × 41 × 71 × 101 × 281 × 701 × 2801 × 15121 × 21881 × 41761 × 63541 × 88741 × 966211 × 5766433 × 21998621 × 22796593 × 25646167 × 100688449 × 12876020081<11> × 622434484561<12> × 15030659834591591<17> × 1186844128302568601<19> × 348838692130131428210021<24> × 512718953215732865581052501<27> × 1179552870542516698915727867308021<34> × 256402094666712277343533321132464467806315736646582961<54> × 51782150580788338874609747937866194818812699961309513572252934481<65> |