Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 525: | \[2^{525}-1\] | 72 × 31 × 71 × 127 × 151 × 337 × 601 × 1801 × 4201 × 7351 × 29191 × 39551 × 100801 × 106681 × 122921 × 152041 × 10567201 × 60816001 × 181165951 × 535347624791488552837151<24> × 325985508875527587669607097222667557116221139090131514801<57> |