Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 299: | \[{13^{299}-1\over12}\] | 53 × 599 × 1381 × 264031 × 1803647 × 94015169 × 113070439 × 934301447 × 808028808913<12> × 2519545342349331183143<22> × 73191869782054097032037<23> × 45952825346564762660664252676913609018623679635214129352260926651<65> × 72877007516653305149424569851818021809254063084997190894430606801373453341<74> × 944125249886648233028895626050002403186710893925526614184168147856820016858276372578811526917<93> |