Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 152: | \[{22^{152}-1\over21}\] | 5 × 23 × 73 × 97 × 229 × 457 × 3209 × 4789 × 45943 × 341203 × 2999569 × 23967703 × 34356713 × 381921737 × 75009303521<11> × 97404596002423<14> × 654963203993173<15> × 58167002655376561<17> × 2951364922875749801318096593<28> × 471300292422508768026225597793<30> × 7096713659902681984069962288809<31> |