Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 384: | \[{8^{384}-1\over7}\] | 33 × 5 × 13 × 17 × 19 × 37 × 73 × 97 × 109 × 193 × 241 × 257 × 433 × 577 × 641 × 673 × 769 × 1153 × 3457 × 6337 × 38737 × 65537 × 274177 × 816769 × 6700417 × 17047297 × 22253377 × 38941695937<11> × 278452876033<12> × 487824887233<12> × 628582818817<12> × 67280421310721<14> × 18446744069414584321<20> × 1562985901350085709953<22> × 1422346738975853644793916289<28> × 442499826945303593556473164314770689<36> × 3677056484269722937807027706903928978741725810890091763971733429025586784929458123827641259932929<97> |