Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 678: | \[{7^{678}-1\over6}\] | 23 × 3 × 19 × 43 × 227 × 1583 × 45427 × 1854331 × 8654522423<10> × 120249742857138175784797627<27> × 4842723074886320121848080733<28> × 4910104337313408230335565879<28> × 952667477245436772047525567653711<33> × 230091944348186646613985311030910601771732680858725360845463092718251327185092028815673428363<93> × 975334506718312801750206716178016020107390240578353247786702804728092993712946316338004264477862335844561025620045524240018774705257460458607578327261<150> × 50277599099891882076322420550423818006016335566041506641977399540803958781357748223122941133702465188461784043339587859765244800611067804069786137292561495305061720296611194410070133563<185> |