Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 313: | \[{28^{313}-1\over27}\] | 5009 × 194687 × 1058567 × 24600377729<11> × 143363903321<12> × 24769350746418745087<20> × 459230485523316014414965494825199<33> × [816519919789822614189646130922477766657891033574221031556743416973070151089040306862371090012848109940920785546241269258846013176363028223189764583057209139775978065348870450477775681212715490615049501773379730506289591567367070798701335589069545915501118491315070849439899873956838877332103835171791848409080085774145078943627682008935608179117632710654826141053<363>] |