Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 385: | \[{28^{385}-1\over27}\] | 113 × 2521 × 206501 × 637421 × 4422461 × 6077039 × 50545507 × 16071033331<11> × 829366011211<12> × 15215787226333<14> × 201804476468981<15> × 3214578329328521<16> × 94275090945167441<17> × 5906633396655970661<19> × 8043246179584357573185817<25> × 99885743242098024883367081<26> × 5320614889323243834845114570091316426473321807889<49> × [332404546903956276999218383392847255574159266001225669550507182274620697262751544481487613396445558724984360771180890599272430887029375503352694375284492393614258526464079868227881171912309958445493551654995535114538884445151746321865463689644767665525210822705352895688472357322754501280633065656961898900089688612881<318>] |