Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 777: | \[{8^{777}-1\over7}\] | 7 × 73 × 127 × 223 × 337 × 1999 × 4663 × 10657 × 92737 × 169831 × 321679 × 649657 × 1238761 × 6433561 × 26295457 × 36085879 × 199381087 × 319020217 × 616318177 × 2499285769 × 698962539799<12> × 420539150622853081<18> × 4096460559560875111<19> × 4750535347861726648681<22> × 96786396648673403672115546439<29> × 21234370960880098806027750185552713706866970578963970119<56> × 1396099655816209040897082635430814457429299016552082514363486485025543<70> × [3700075844436300305642213949807615312147981310375289890764516706696389002272375766730277995459873603446028615787729631487975934999569449056493232968170926280408308563941267714021449700284863339168952235505810166482689705359080462254510217159430416582555773850859181034043792904939225647853582977678115969691653048482607234048730503196255971314420106500111256221336947877361<373>] |