Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 237: | \[{16^{237}-1\over15}\] | 3 × 7 × 13 × 317 × 1423 × 2687 × 49297 × 151681 × 647011 × 13664473 × 202029703 × 1113491139767<13> × 18890331057055511701<20> × 23728823512345609279<20> × 31357373417090093431<20> × 381364611866507317969<21> × 201487636602438195784363<24> × 604462909806215075725313<24> × 1487840558911519281039078769<28> × 13775694692898492184744709216599873<35> × 2408840984250243046611173150925486103064449<43> |