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 '23742580529772380320355204834784690683542597260084665239087700073190848498035489537761572405924661595053582609372538935647817828427733867788804825812106509658538991129483636503244989469802376637462926295020159156602816546631682148418330691451144347719463511626470653770563999581304655023093719669946464620832855497735395604244028046097111415639548331449977321270756272532695247425223209646441988916815646452169024818776257579514557156297131149756972905057671697850137954613982428840074384175545150703441290512273578007658528330662836779677383791762514155065347442603160449723047108207157223229968319059136943981995115892097391464777539721749351420070496990470502744726289319490703409779391535281387779286795079101844003754481613197187100908181861658959607745855797034772167745449494871869004667807443801312118689093723999621956820762416487500692941934254079768644134280841263260289538284084401138818951497051730973935214356705970715769279164914463696051265351154696910115765896171352576023509915920493402658470349707721685613641177594994201064083580472083368747082989262005021205385202420389489854431983505152629989101636667348143539626849532297796947870616662750720536075292607242430641230676504932687466346650552221862779216773288042134926944366705096007640570999350720035090186231157374105005689965151702875160003430349704399992529684388092827196742350901859804680365496203374396368372118544567171672756644415152295715154506816762894783848664159703103100200287844190003442492354233209110253919136209653936973536903726839762356056448010280662122017519533816608994710184703077443981482561750846925994352772780992899709680471762093718421608510023009949175058249578055791016044875836413562875286842062342279305548452050917975708452802112283257134204142908772680410689674646494348189913555890842752109971279565185960632552775484179725482469590420120018267400581902076026568683193331638669261450505049108157998978948272155419115226117493275498219530161345247' --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":"23742580529772380320355204834784690683542597260084665239087700073190848498035489537761572405924661595053582609372538935647817828427733867788804825812106509658538991129483636503244989469802376637462926295020159156602816546631682148418330691451144347719463511626470653770563999581304655023093719669946464620832855497735395604244028046097111415639548331449977321270756272532695247425223209646441988916815646452169024818776257579514557156297131149756972905057671697850137954613982428840074384175545150703441290512273578007658528330662836779677383791762514155065347442603160449723047108207157223229968319059136943981995115892097391464777539721749351420070496990470502744726289319490703409779391535281387779286795079101844003754481613197187100908181861658959607745855797034772167745449494871869004667807443801312118689093723999621956820762416487500692941934254079768644134280841263260289538284084401138818951497051730973935214356705970715769279164914463696051265351154696910115765896171352576023509915920493402658470349707721685613641177594994201064083580472083368747082989262005021205385202420389489854431983505152629989101636667348143539626849532297796947870616662750720536075292607242430641230676504932687466346650552221862779216773288042134926944366705096007640570999350720035090186231157374105005689965151702875160003430349704399992529684388092827196742350901859804680365496203374396368372118544567171672756644415152295715154506816762894783848664159703103100200287844190003442492354233209110253919136209653936973536903726839762356056448010280662122017519533816608994710184703077443981482561750846925994352772780992899709680471762093718421608510023009949175058249578055791016044875836413562875286842062342279305548452050917975708452802112283257134204142908772680410689674646494348189913555890842752109971279565185960632552775484179725482469590420120018267400581902076026568683193331638669261450505049108157998978948272155419115226117493275498219530161345247"},"decimal":false,"detail":2}}'