Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
56: | \[{30^{56}-1\over29}\] | 17 × 31 × 53 × 71 × 113 × 241 × 631 × 3361 × 93997 × 572573 × 1118041 × 927132724337<12> × 6353807261257<13> × 44450386388824175788393<23> |