Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 449: | \[{8^{449}-1\over7}\] | 1256303 × 6871197486841<13> × 278476007488759<15> × 3578620616468306981503<22> × 526385733768051189441947168504909159<36> × 89396693392545895668303801721053258296972567022618106513441<59> × 160159829034536864858408147399921471411014038953587988137557298666351186312920767744858149033<93> × 6768566277481782964196285648625716546327710467508659236441869257034363268017838312415732307814995874354594188285538901828023129512044592751586032775416803612694233<163> |