Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 450: | \[{15^{450}-1\over14}\] | 24 × 11 × 19 × 31 × 61 × 151 × 181 × 211 × 241 × 541 × 739 × 811 × 991 × 1531 × 4931 × 19231 × 20101 × 21061 × 44101 × 46751 × 47701 × 142111 × 712651 × 2080801 × 2568061 × 5062201 × 9555151 × 39225301 × 151640551 × 585037351 × 3058266151 × 37082184301<11> × 15992341593301<14> × 138711479680351<15> × 316091724098401<15> × 2538851987876401<16> × 34800625873379851<17> × 7112705843777290751<19> × 228519862691104434601<21> × 2211967376723264172601<22> × 92978587355640205970336221<26> × 610433666821864242438170851<27> × 17402794883183351929087891501<29> × [32073825848761908186304547348478788966240040532020038804099142684417442753867401595202865327252469320692092033298524899756363603524437837077616991858606304017914960606501<170>] |