Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 593: | \[{4^{593}-1\over3}\] | 1187 × 104369 × 62438341552073<14> × 3061144307110551703729<22> × 6975729612775483517844546731<28> × 4027016481761119763553952463965455549881<40> × 25196991873376840666877753354820854690700634889106188923103670773691217227808851569395431001182974969907991345111<113> × 20901355763620228190482364670053255597707542325021185142164434185907573757256676239000397576168708282559117022843568997850263730432051<134> |