Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 284: | \[{8^{284}-1\over7}\] | 32 × 5 × 13 × 569 × 853 × 5113 × 17467 × 66457 × 102241 × 189997 × 228479 × 266677 × 1396429 × 18369973 × 48544121 × 56409643 × 148587949 × 212885833 × 4999465853<10> × 5585522857<10> × 40524027877<11> × 472287102421<12> × 13952598148481<14> × 20111008087273<14> × 2849881972114740679<19> × 4205268574191396793<19> × 203525545766301306933226271929<30> × 2646185328486854129693169911139349<34> |