Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 749: | \[{4^{749}-1\over3}\] | 43 × 127 × 643 × 1499 × 46439 × 120618551047<12> × 227444841245238451591<21> × 84115747449047881488635567801<29> × 162259276829213363391578010288127<33> × 963644196044828188869351734353847<33> × 4143416085716681490838653625856664863812512904964849<52> × 1067740385407532831676124118528135895750892746743123583547<58> × 28249136705066576439522697433289867007783495956471223743249440199874751<71> × 265168210875294435131691485888315426328518887962256780931238822948289856657586504113363655596519745405902488698615900864762882650843<132> |