Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 286: | \[{28^{286}-1\over27}\] | 232 × 29 × 53 × 547 × 859 × 2237 × 3719 × 114661 × 1598039 × 5242381 × 6077039 × 50545507 × 88440353 × 540610746853<12> × 4543753614603737<16> × 19578806729494452631907<23> × 326718118876965644610639001<27> × 4230382497214749175565322370827229<34> × 165110049920843462221312019272275955104957595751425961<54> × 1580680648373538364038167410599561746064227775742364011470069056302207<70> × 19852632810416175481161165511917725059468852923002887110325318225610957191564597160154178093590961404419696915152953815857<122> |