Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 299: | \[{15^{299}-1\over14}\] | 53 × 599 × 829 × 18539 × 31741 × 157483 × 16655159 × 108028994387029<15> × 3046462151831565769<19> × 965030382553184960897<21> × [24804742356004106388414123037743803751819265410165693981450103563601583703872717412377141148546141100607632674521694300336637393232202738495845775886200873238729525373824960192051121585065607535554768426709025148531242388757820764838903563690031155014076608051639284577<269>] |