Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 144: | \[{8^{144}-1\over7}\] | 34 × 5 × 13 × 17 × 19 × 37 × 73 × 97 × 109 × 241 × 257 × 433 × 577 × 673 × 38737 × 87211 × 246241 × 262657 × 279073 × 33975937 × 209924353 × 4261383649 × 487824887233<12> × 138991501037953<15> × 24929060818265360451708193<26> |