Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 372: | \[{15^{372}-1\over14}\] | 25 × 13 × 113 × 211 × 241 × 311 × 373 × 1117 × 3877 × 4651 × 20089 × 856469 × 958459 × 3381325249 × 3117765514597<13> × 12871001296201<14> × 14572134604887829<17> × 18167443254760948901<20> × 660603097954354915026956925328631<33> × 39599344887911978134781158992797353919929<41> × 117107805549292247865914823046429217019361<42> × 8430032843479545087405985065664262044587757343176483519553882603491<67> × 34327408553153235877683920788486912324029949838354936279201903283843361<71> × 7807222685458681454032328264572510126596786086570608430187942443676442453<73> |