Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 620: | \[{22^{620}-1\over21}\] | 52 × 23 × 97 × 181 × 311 × 373 × 401 × 2791 × 4093 × 150901 × 224071 × 245411 × 247381 × 262261 × 23298361 × 2239863151 × 3592159411 × 45727606853<11> × 24368768938283491<17> × 13301795714853532637<20> × 1971663731022770459161<22> × 5464220413673727340561927632817<31> × 6039606036033908084006984030850194855977<40> × 705198179835874267281715888266396987533629762958910465329544819437164340713183717317989448775133346036142722408754743840243556298116445194344371<144> × 170369645446004603822491476262342178340218139750844231204741036144622032931622486988555460042460026465852300301415267421000200609822014285172130815815241<153> × [15217376095693493486899735620343777893465910195559024960405552566718507137010467967790073538630995846090771473553159896426052681271224977189048527557618602278626211034393867615833450128695648628408588106679532253312511146853710576236547628631603703361817118226782652917669812210305303744981156372320439530130860022555708901<323>] |