Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 252: | \[{31^{252}-1\over30}\] | 26 × 32 × 73 × 13 × 19 × 29 × 37 × 43 × 127 × 211 × 331 × 577 × 2143 × 3637 × 6301 × 7253 × 11971 × 13469 × 70309 × 71821 × 81343 × 922561 × 1536553 × 1538083 × 163598989 × 277739477 × 917087137 × 75077698123<11> × 512616735577<12> × 2813432694367<13> × 4038949965541<13> × 45376431752737<14> × 550469850411853<15> × 939903457569889<15> × 37323324288470557<17> × 1652484831253806817<19> × 3041204060704443103<19> × 728921581954037396189325850537700569<36> × 13411579116261593044340941865967010577593<41> × 477069577207946543297636721665148435540337565749981<51> |