Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 407: | \[{16^{407}-1\over15}\] | 23 × 89 × 149 × 223 × 397 × 593 × 683 × 1777 × 2113 × 3257 × 15467 × 24421 × 25465177 × 25781083 × 184481113 × 231769777 × 285298861 × 567115429 × 616318177 × 2248206137 × 3068001817 × 25330067076999169<17> × 619525961477982276740749<24> × 1826375940722234754636475033<28> × 18217623067226798354976107737040389<35> × 42897689055449636582684640379732099<35> × 93189126452944019033888022519639331350438619<44> × 97178097342715076057640064560407768548178320300564546093<56> × 64374964789425759023795123420605218308370931223311543823123770088423<68> × 62474894279346163099394986996638655383444073179820270094537973613640797069<74> |