Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 297: | \[{31^{297}-1\over30}\] | 33 × 23 × 199 × 331 × 397 × 617 × 991 × 3637 × 81343 × 204733 × 150332843 × 36093579787<11> × 238759606207<12> × 294573316951<12> × 1836205027201<13> × 126901881805771<15> × 215792743120601131<18> × 3763784187326467459<19> × 869535983092745596321<21> × 650141690025315305584300036801<30> × [116719666030742768133181191618127562135403857119177635772645778276241101953252603612100931287713397236865052427911786406993988270031709558042260318023466257353423616973604101752954224337271123046685266308907619414367322923293983387517562143922089733048450943<258>] |