Base 27 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 440: | \[{27^{440}-1\over26}\] | 24 × 52 × 7 × 113 × 23 × 31 × 41 × 61 × 67 × 73 × 89 × 241 × 271 × 331 × 661 × 991 × 1181 × 1321 × 3851 × 4561 × 4951 × 5281 × 5501 × 6481 × 7481 × 15401 × 25411 × 50821 × 131561 × 176419 × 177101 × 298801 × 570461 × 659671 × 660001 × 1286011 × 2382953 × 26050081 × 42521761 × 47763361 × 2413941289 × 4968781621<10> × 11096576833<11> × 56625998353<11> × 11123788282861<14> × 24472341743191<14> × 560088668384411<15> × 111326949838019521<18> × 118263536912223121<18> × 13490012358249728401<20> × 20431242370346923068097<23> × 927319729649066047885192700193701<33> × 4183739978746243239852385111562221<34> × 40007274803301526654799927582102951572569791041<47> × 176866524087860744584118689063694356357715157683631402084481<60> × 1459129530571870351946267230441980296015896719783440814558211961<64> × 18869808553416847525825105727001954383816910124391196489332846866933607667668015423761<86> |