Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 175: | \[{15^{175}-1\over14}\] | 7 × 11 × 71 × 3851 × 4931 × 46751 × 1743463 × 4167731 × 7112705843777290751<19> × 53096945644422356461<20> × 351056481818105725288810491576221240752763346802987200872853015903253558662412824682625892957247776014005938972441383149945420186199543651<138> |