Base 34 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 81: | \[{34^{81}-1\over33}\] | 34 × 37 × 163 × 397 × 541 × 1459 × 5142259 × 13917511 × 3287086681051<13> × 441720993182570173<18> × 12580723724714597668206799<26> × 1698167743896840035940443541100421542519<40> |