Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 138: | \[{22^{138}-1\over21}\] | 3 × 132 × 232 × 47 × 139 × 277 × 461 × 463 × 1381 × 1933 × 4463 × 176227 × 1323064018651<13> × 60575166785239<14> × 245494445849562491<18> × 9552007992825634081<19> × 1880185210549362656156351326099<31> × 111284674149221479321933039375712865638979268198676574953779<60> |