Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 525: | \[{15^{525}-1\over14}\] | 7 × 11 × 43 × 61 × 71 × 241 × 3851 × 4931 × 20101 × 46751 × 1743463 × 4167731 × 21367501 × 29794801 × 39225301 × 47745601 × 81288901 × 2817034275427<13> × 316091724098401<15> × 7112705843777290751<19> × 53096945644422356461<20> × 24596480723711374110433501<26> × 17402794883183351929087891501<29> × 1394945722289145677734311213301<31> × 12340745958492257916284855626741<32> × 391152073529475706777282298522101<33> × 2967062407966342298971481516891275732501<40> × 351056481818105725288810491576221240752763346802987200872853015903253558662412824682625892957247776014005938972441383149945420186199543651<138> × 456892763252405566073188872185551236799573123387006174175886179048612740788563428066858137123587326277982094953176355716582151303347378606155084485301<150> |