Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 328: | \[{3^{328}-1\over2}\] | 24 × 5 × 412 × 83 × 2297 × 33703 × 2088869 × 2526913 × 32326369 × 110767897 × 86950696619<11> × 270547105429567<15> × 574933708017116710865237<24> × 7088757890453145334311443322801793110058505541970400820190920577<64> |