Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 300: | \[{15^{300}-1\over14}\] | 25 × 11 × 13 × 31 × 61 × 101 × 113 × 151 × 211 × 241 × 601 × 1531 × 1801 × 3877 × 4931 × 19231 × 19421 × 20101 × 28201 × 33601 × 44101 × 46751 × 115201 × 131381 × 142111 × 278041 × 712651 × 2080801 × 5062201 × 9555151 × 19292401 × 39225301 × 706195561 × 3100294801 × 316091724098401<15> × 34800625873379851<17> × 7112705843777290751<19> × 11462542089631773001<20> × 2211967376723264172601<22> × 17402794883183351929087891501<29> × 5276658969583784209292870346873232901<37> × 1052183599639933063556404430278700776333623623811001<52> |