Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 601: | \[{4^{601}-1\over3}\] | 3607 × 64863527 × 9293424294571360217<19> × 643390760896826272806925563059612685509039265031067456849993<60> × 55132269643416861808940702349402264919915041547757633769331818430511033108848146620408728664776308505356579463<110> × 297666782975060589791893277024611509655023147165238672662079633327109422297176039465137566392998939836163129724489087862021758664431320982795839065964536485408803<162> |