Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
118: | \[{31^{118}-1\over30}\] | 25 × 125693727758648407613<21> × 1048987974531167443121633837864965091749<40> × 291352969201392097489849574023263491056699412479<48> × 2593612406801473161066888689957754830054017617439929433838873336053<67> |