Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 427: | \[{22^{427}-1\over21}\] | 7 × 733 × 14519 × 188369 × 2722553 × 13531997 × 16968421 × 50819012171957<14> × 1078645984686904783<19> × 182477786660053773085442131722484638881547011413<48> × [889247070202794643346970063777450207595890313783557743806494327432184767524835541519402248598826252717561581529067380709771096297704648970870240847414073005957644599368134653491379950659777666545984440422497830292739700597054373115945762011901621624539182170572362435070652016391599979316690686900041803433267936563294380112040947867159735845864092393014494350598849275633664227332022631441495225869348518125253176161595667254509054646062081228551536577578849<459>] |