Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 369: | \[{15^{369}-1\over14}\] | 241 × 541 × 1723 × 5167 × 12547 × 21061 × 248829247 × 8430332222527<13> × 114557014359607<15> × 1296290182141167360809609737147<31> × 14052995136749824817978552692323583<35> × 44612545556379601866218236511065863857423885983<47> × 113264468039252053655916219008628514943476621498927085890887401735631323282354171776596617422320592801394469425139706606399035108394264627371651002619361836405129603384117190721028792710653177473355019007319732484700080131562629286399618529277591488047542633479247867<267> |