Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 155: | \[{22^{155}-1\over21}\] | 2791 × 245411 × 247381 × 3592159411 × 5464220413673727340561927632817<31> × 170369645446004603822491476262342178340218139750844231204741036144622032931622486988555460042460026465852300301415267421000200609822014285172130815815241<153> |