Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 448: | \[{23^{448}-1\over22}\] | 28 × 3 × 5 × 17 × 29 × 53 × 71 × 113 × 193 × 257 × 449 × 673 × 2969 × 3697 × 10781 × 139921 × 598193 × 623009 × 3391669 × 5336717 × 9619978817<10> × 54505356605713889<17> × 15887591750468908417<20> × 133159684625386787873<21> × 19640790445056687082126153729<29> × 480249047846803230704957710381921<33> × 73169086596340605135996253341472193203073<41> × 472538532924231984308608324090027972760231675157329<51> × 7329263141523689667869211910425009163638064486963152862638039258406766109413197339746990540673<94> × [144073979923863417757046797463496479325159995189921126509466848692303730834685822586139099736872124654070334856744895943132300711174722293624272894717637054651053325023326094246043706070946150170487039395661559685698568857836813169409<234>] |