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 '74730646488324185151811069149271188738291046141175268317890053690487825415356299163098804474976746849708076690817374230325901907794879027137233386316844921198421432340662522159770598681313136536477919861547810967779405454334244624909254335510939872855414600286290202716438326777830053735747854427271071171242623409058785013025554452227174159672220595821504739973860512936848891728845979715959292806259061114006924247544585822082529660951918815828541325724611085630369456490914457464047914913663416036494619240499996585571594501444828274459394134538819941211095140617187849068768038605760265210134979148587049720334352248344348584661918949010611539996025826609016432970458341459653678274428107320546799530708663951579426757330421480811541907311844189464974989452322896083240957544305087316988800694098451197709986748949552004338094394400786327947768683029373722336370333072330656461025363647652299027999028898124049648309085466387238989249920964328153374138401627129029572678090895356498784579765482260261542824884031743210689935713671354044605318682463134121154074030496749302764677784637877429199041005249788006010059713643856673959816730085478761742741236732872651942751714363576038114874450235214772185998414706253377276945682026140008532452310583687976976569422675660637287204257596593541819146758879496614875477676408175211073770417925604479094013004454970595073052431745853343367944843870403882452173205439059976149342749820560377908548215221100738135728613205737302336809642797056557639454078184239126574101655696133743809086810210537832481020662165107285993201859010986629079449639924486741928878547234175855325037788896579433806317081749028450831482453397370571446422949603722218687211509264502546593766576179878488918943852291533280528809621185273163915675830279488833410373254081533861548556293879600594200440009829331389128477538959016282733020518535921491215553462438741613192425652164393228031567079956589496048017836269734209577719755643149818763500569' --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":"74730646488324185151811069149271188738291046141175268317890053690487825415356299163098804474976746849708076690817374230325901907794879027137233386316844921198421432340662522159770598681313136536477919861547810967779405454334244624909254335510939872855414600286290202716438326777830053735747854427271071171242623409058785013025554452227174159672220595821504739973860512936848891728845979715959292806259061114006924247544585822082529660951918815828541325724611085630369456490914457464047914913663416036494619240499996585571594501444828274459394134538819941211095140617187849068768038605760265210134979148587049720334352248344348584661918949010611539996025826609016432970458341459653678274428107320546799530708663951579426757330421480811541907311844189464974989452322896083240957544305087316988800694098451197709986748949552004338094394400786327947768683029373722336370333072330656461025363647652299027999028898124049648309085466387238989249920964328153374138401627129029572678090895356498784579765482260261542824884031743210689935713671354044605318682463134121154074030496749302764677784637877429199041005249788006010059713643856673959816730085478761742741236732872651942751714363576038114874450235214772185998414706253377276945682026140008532452310583687976976569422675660637287204257596593541819146758879496614875477676408175211073770417925604479094013004454970595073052431745853343367944843870403882452173205439059976149342749820560377908548215221100738135728613205737302336809642797056557639454078184239126574101655696133743809086810210537832481020662165107285993201859010986629079449639924486741928878547234175855325037788896579433806317081749028450831482453397370571446422949603722218687211509264502546593766576179878488918943852291533280528809621185273163915675830279488833410373254081533861548556293879600594200440009829331389128477538959016282733020518535921491215553462438741613192425652164393228031567079956589496048017836269734209577719755643149818763500569"},"decimal":false,"detail":2}}'