Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 318: | \[{31^{318}-1\over30}\] | 25 × 3 × 72 × 19 × 107 × 331 × 1061 × 3499 × 83423 × 185183 × 218149 × 15149521 × 19503537629<11> × 2210276655188599<16> × 88387933035190440551<20> × 131870338724373546822946177<27> × 1593405992841712852324481273<28> × 478103814896755465120707905491<30> × 113900949304539450007305173955673<33> × 3561723000085796683039939504456245151097965263319<49> × 33793167994225503642080562347779984973643397178928395485279546813<65> × 74411334441595912365847960431041785916549288596884824521870662692917145859253<77> × 254778077783003093246509537893015378342731379633471661734311057634039996120896279557<84> |