Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 41: | \[{31^{41}-1\over30}\] | 83 × 42481797154433176612759<23> × 132259604354473376342663326676479453<36> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 41: | \[{31^{41}-1\over30}\] | 83 × 42481797154433176612759<23> × 132259604354473376342663326676479453<36> |