Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 194: | \[{20^{194}-1\over19}\] | 3 × 7 × 389 × 1002204583 × 9446725241<10> × 53678965801<11> × 3458308355911001<16> × 1814565957918978949<19> × 375921460689078723273556870099<30> × 49613947804350394354357836874439<32> × 2645332912014287669339495089951567<34> × 24087249964807710583843491880243798561<38> × 4268250703588644617929155594605677521016797237122821<52> |