Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 425: | \[{16^{425}-1\over15}\] | 52 × 11 × 31 × 41 × 101 × 137 × 251 × 601 × 953 × 1021 × 1801 × 4051 × 4421 × 5101 × 8101 × 8501 × 26317 × 43691 × 131071 × 268501 × 550801 × 23650061 × 91362251 × 504123101 × 1642180113401<13> × 5046718903451<13> × 7226904352843746841<19> × 9520972806333758431<19> × 26831423036065352611<20> × 237058324258509786393799370284480733761294845498543267808795754487676001<72> × 4777345536534924905725989065906794483551790056167373849557595739795782900601<76> × 536640191949478471151063687160773441802481640603401837182503852092255482451655337073364381101<93> × 2069237502716464794985816105550982396339012259800336045348830659287429006970383760001800897298401<97> |