Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 32: | \[{31^{32}-1\over30}\] | 29 × 13 × 17 × 37 × 409 × 1129 × 1889 × 1347329 × 6139297 × 23277313 × 25085030513<11> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 32: | \[{31^{32}-1\over30}\] | 29 × 13 × 17 × 37 × 409 × 1129 × 1889 × 1347329 × 6139297 × 23277313 × 25085030513<11> |