Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 321: | \[{13^{321}-1\over12}\] | 3 × 61 × 2141 × 374929 × 112778857 × 3286126349184953<16> × 1842708018885404721657218228344276394838382971121554990878798778219059086476647798269311913985066291<100> × [3127876388125804526333265839211748398346913444430112391785110348881336212945912272031289656605110784452040222493872376626458246030132244469230030417215332760761246583720831668329172096356328293637110580502203260679153770193<223>] |