Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 615: | \[{3^{615}-1\over2}\] | 112 × 13 × 83 × 4561 × 6971 × 31981 × 51169 × 1195561 × 2526913 × 86950696619<11> × 1999827817517387044561568810795329<34> × 1362086797533369884718343037628515311025580176953784595301<58> × 65601426257068882740808329269766819608728424724067187242117750270751<68> × 421633347816774477312568512935355512995267621932928675226625496883164556883743599102159141<90> |