Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 319: | \[{15^{319}-1\over14}\] | 59 × 67 × 463 × 2333 × 8537 × 8933 × 135257 × 12463331 × 2673820997 × 15476275967141572773889537007699<32> × 358298126273886481517938930725453523<36> × 13074383876854192340113695073967170947053188726257356358220793456668474853613894165120127118447971353893686027806133833776494071662933013753256296358783460176095540035155124056461911456216635054667020531335004381040136383275456321193049192985083868028135078437772359321<269> |