Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 191: | \[{16^{191}-1\over15}\] | 383 × 3821 × 25212001 × 5972216269<10> × 7068569257<10> × 39940132241<11> × 89618875387061<14> × 332584516519201<15> × 87274497124602996457<20> × 1833085153842665442652283234165143433597<40> × 20844252715379252090938485003447004944677<41> × 1046183622564446793972631570534611069350392574077339085483<58> |