Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 294: | \[{15^{294}-1\over14}\] | 24 × 72 × 43 × 197 × 211 × 241 × 8527 × 723031 × 883471 × 1743463 × 5706541 × 10164071 × 10678711 × 25036159 × 34953661 × 35549599 × 191354311 × 2764834801 × 93589065767<11> × 2817034275427<13> × 4175288799599<13> × 1716116764931059<16> × 6278915733367831<16> × 14675999570738648605387<23> × 3282154659041887520290410523<28> × 228848777235834187287069221085362591044067914515121<51> × 98578251017180729969573144836744482814306706370292833193072232507302398183371264071<83> |