Base 27 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 260: | \[{27^{260}-1\over26}\] | 23 × 52 × 7 × 112 × 13 × 31 × 53 × 61 × 73 × 79 × 131 × 157 × 271 × 313 × 1181 × 2341 × 2887 × 4561 × 6553 × 7333 × 10141 × 29641 × 325729 × 398581 × 797161 × 3701101 × 39838501 × 47763361 × 419437201 × 4795973261<10> × 54975287251<11> × 3785998525531<13> × 56919999055921<14> × 82669546937641<14> × 110133112994711<15> × 271722723752757889<18> × 105919308797935444986721<24> × 459876893330807555241601<24> × 25603479048981402918767053418641<32> × 85515537811724373585467087637721<32> × 104542451469611729792043170216041<33> × 98139929939748977208994554331725481<35> |