Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 110: | \[{28^{110}-1\over27}\] | 112 × 232 × 29 × 53951 × 637421 × 6077039 × 50545507 × 16071033331<11> × 346438463911<12> × 540610746853<12> × 829366011211<12> × 94275090945167441<17> × 5906633396655970661<19> × 2091907155977893174797613626701632222782136241<46> |