Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 508: | \[{13^{508}-1\over12}\] | 22 × 5 × 7 × 17 × 509 × 5912867 × 190421635185941<15> × 640083839826713<15> × 115806724907473978817<21> × 687304059153048444682671733000360314795590589587024964570201596437<66> × 307276111615988386477617591133327473037536679011914070596658374566605942001<75> × 1889628004829682891131446914841122715904737697796281271846268890798899576955033713387489540044285157<100> × [157836673562967200244275520274885568814297541763400016820444752344242397396781770768162182491007997200461681180966160930638446721986303414254789084622936733381737601560363677381282796044577239143956731754256530666188476164524609712489197240919041453339301414001621<264>] |