Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 441: | \[{4^{441}-1\over3}\] | 32 × 73 × 19 × 43 × 73 × 127 × 337 × 883 × 3529 × 5419 × 22051 × 92737 × 126127 × 309583 × 311347 × 649657 × 748819 × 5828257 × 77158673929<11> × 4363953127297<13> × 4432676798593<13> × 26032885845392093851<20> × 2741672362528725535068727<25> × 4487533753346305838985313<25> × 1996187656530838599012839257<28> × 169462032913464877812492288268723<33> × 7086423574853972147970086088434689<34> |