Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 329: | \[{15^{329}-1\over14}\] | 7 × 283 × 659 × 2351 × 6299 × 140813 × 183959 × 1743463 × 612583112093<12> × 2656097495066872027407960633754824283<37> × [43193312111668871280577122481604258062686078710386640575501910750659932431059967294734585494526590996889176602759639760666588468377203558347383252583181623022276539723686737184702171071809728930882753812230996249361330136316383022426749206487761486295902935099798906802300158021158891379904961227447960220329<308>] |