Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 342: | \[{4^{342}-1\over3}\] | 32 × 5 × 7 × 13 × 192 × 37 × 73 × 109 × 229 × 457 × 571 × 25309 × 32377 × 131101 × 160969 × 174763 × 524287 × 525313 × 1212847 × 4598533 × 5675149 × 39291697 × 93507247 × 160465489 × 275415303169<12> × 99463730244517<14> × 3042645634792541312037847<25> × 41435606371227835355919073<26> × 19177458387940268116349766612211<32> |