Base 34 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
57: | 3 × 397 × 6271 × 12541 × 575777 × 150586169165353<15> × 297141194226589<15> × 3748609209536524633<19> × 6596767401715374644543<22> |