Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 307: | \[{16^{307}-1\over15}\] | 1229 × 7369 × 93329 × 254197 × 1021697 × 14608903 × 85798519 × 201846361 × 1249678499 × 23487583303<11> × 78952752017<11> × 4315199443523<13> × 302756422009117<15> × 17803984478124349<17> × 210708825063558235331<21> × 104098941490565575247641178172348560863433<42> × 76490150923395684178472404003401860286655314439889<50> × 112177476474470525577861298937835338545723093134076373561<57> × 546889939021685433057736691102762671948973556024580503929914710243151433970315133<81> |