Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 138: | \[{13^{138}-1\over12}\] | 2 × 3 × 7 × 47 × 61 × 139 × 157 × 277 × 1151 × 1381 × 2347 × 7039 × 10903 × 84801400975699<14> × 282244620282733<15> × 2519545342349331183143<22> × 22271867346104672186904295489<29> × 1577551654677578101258914545922231304801732231<46> |