Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 340: | \[{16^{340}-1\over15}\] | 5 × 11 × 172 × 31 × 41 × 137 × 257 × 953 × 1021 × 1361 × 4421 × 26317 × 43691 × 61681 × 131071 × 354689 × 383521 × 550801 × 12717361 × 23650061 × 496304801 × 4278255361 × 10008321601<11> × 1392971637361<13> × 2368179743873<13> × 2879347902817<13> × 33910825580641<14> × 7226904352843746841<19> × 9520972806333758431<19> × 26831423036065352611<20> × 373200722470799764577<21> × 8088220746627020943841<22> × 10146032011084172688350401<26> × 630894905395143528221826310327361<33> × 18741457027056199460701768016571521<35> × 420245688628846194691190674873072272865640768049748318922486401<63> |