Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 236: | \[{31^{236}-1\over30}\] | 26 × 13 × 37 × 1315229 × 447662737 × 125693727758648407613<21> × 2493308391501436765483081<25> × 37715904042481194672856981<26> × 1048987974531167443121633837864965091749<40> × 291352969201392097489849574023263491056699412479<48> × 2593612406801473161066888689957754830054017617439929433838873336053<67> × 1795775150909688854290902463847349371739146570168123634389721133095290463216939307889873993468681705391495497<109> |