PRP · Probable prime
Enter a value, an expression, or a term with a variable like 10^n+1 to list a range.
Switch to Database id to look a number up by its stored id.
Reading never stores anything; use Create to add a number to the database.
See the expression syntax & functions reference.
Is factor of
Primality
This is a probable prime: it passes probabilistic tests but is not yet proven.
Build an ECPP certificate (for example with Primo) and upload it - it is stored and verified locally, then the number is promoted to proven prime.
Primo input filedownload .in
From the command linefdb · curl
fdb
fdb number '24372912562138698234576177313353628373821019240740390558120046130425393180516248651836534548603482346690662501151698336004159305379052270517399873324252330885142191832758216078011547629682811846007812161342028725969061359058401437517531457691095846091639932482189222765237750317296359562009290555727955237192023978055652399160333648033844366039910027251284613397762787171856520645832031475211360915327703631871363238211359881798673215048406275713481524114315727682592634133347715484023164792113970485319870637811261876657563428231155575044247202253008125841576393443176287716089848272950585105831390518668370049842278235216395872280623093456818003096911665904752836663500212611134282787617656447655916366713600300116051372533050243170844893323790665181181701960969154348645340222131489428147534330782925596987437076767501341090056008746677268260725896654677869382687837716892539462814774236246996090249716334575296473639246308989499923558136009381582301645292670607327707981631041581587828041537595245820890269831889792247551980061992068641219294242086756269140712843462431724499994884600628087555041530467629672677062527752668532245390694242304542503793165277424725318688518867224327743213828390724983739970128389024384853' --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"expr":"24372912562138698234576177313353628373821019240740390558120046130425393180516248651836534548603482346690662501151698336004159305379052270517399873324252330885142191832758216078011547629682811846007812161342028725969061359058401437517531457691095846091639932482189222765237750317296359562009290555727955237192023978055652399160333648033844366039910027251284613397762787171856520645832031475211360915327703631871363238211359881798673215048406275713481524114315727682592634133347715484023164792113970485319870637811261876657563428231155575044247202253008125841576393443176287716089848272950585105831390518668370049842278235216395872280623093456818003096911665904752836663500212611134282787617656447655916366713600300116051372533050243170844893323790665181181701960969154348645340222131489428147534330782925596987437076767501341090056008746677268260725896654677869382687837716892539462814774236246996090249716334575296473639246308989499923558136009381582301645292670607327707981631041581587828041537595245820890269831889792247551980061992068641219294242086756269140712843462431724499994884600628087555041530467629672677062527752668532245390694242304542503793165277424725318688518867224327743213828390724983739970128389024384853"},"decimal":false,"detail":2}}'