Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 96: | \[{28^{96}-1\over27}\] | 3 × 5 × 13 × 17 × 29 × 97 × 157 × 193 × 271 × 757 × 7321 × 47221 × 59809 × 614657 × 2012449 × 4338337 × 33806737 × 51605161 × 168542177 × 365764369 × 22223646961<11> × 20373094654699866379529360122950128475486289921<47> |