Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 328: | \[{15^{328}-1\over14}\] | 26 × 17 × 83 × 113 × 1489 × 127921 × 784577 × 1823226049 × 138583022521<12> × 8430332222527<13> × 30839158009109<14> × 7288493027973872506566329<25> × 1543059974108956456650786169201<31> × 26403624271337241491299227713281<32> × 30590230372519731709879881378521<32> × 14052995136749824817978552692323583<35> × 1845777960594336714787070327610292433909<40> × 1248945668780874865467604288287146622876086867<46> × 138768502131127019952604953730639375151767191765630048824141386898096374763291393<81> |