Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 565: | \[{4^{565}-1\over3}\] | 11 × 31 × 227 × 3391 × 19211 × 23279 × 48817 × 65993 × 1868569 × 636190001 × 1066818132868207<16> × 491003369344660409<18> × 185318160171793066961<21> × 29444549303703754611026537050435001<35> × 68750119162808671470205692247838042160149735698258312826959903010625527023050151<80> × 55032010963083225277133748781276216891770769029556852777446173842960223493066409672741791064238834027799294487913679490115371458761<131> |