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 '87988766035918892594223034011090074911312927428614721914317808579889611061744253394912039604053029144449397691437210724451248498867548434154363098736087075882857072954998036554251873280172024244411120334977527212544222121484894181959673015211023325511381992335242940991871957191395089183849036393448590534197765859053265412314634095769048622260534203543019468773234194218764269763356861985872201224000179114368377423080573866743338716167646513662122030433251174891195454776085513338550204266189380918563239945532294141668883671821070107323533624774179064635973045557533959583105739576428628539823826203802032323910749866616789540873148481531712031677189063476840208324041475504598071620940516847965931997608046216231476262275980766987426483946396362692084432226367052477329949194780014102457960739678625384257191004334958649475485688695863542110771217069693195304573571516894420062075397845428449604563370739679549123535688904408995939518822145649539835367171978239580696629119651968918803116926506733753335732225062673146587852282090157356561090110044565469077' --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":"87988766035918892594223034011090074911312927428614721914317808579889611061744253394912039604053029144449397691437210724451248498867548434154363098736087075882857072954998036554251873280172024244411120334977527212544222121484894181959673015211023325511381992335242940991871957191395089183849036393448590534197765859053265412314634095769048622260534203543019468773234194218764269763356861985872201224000179114368377423080573866743338716167646513662122030433251174891195454776085513338550204266189380918563239945532294141668883671821070107323533624774179064635973045557533959583105739576428628539823826203802032323910749866616789540873148481531712031677189063476840208324041475504598071620940516847965931997608046216231476262275980766987426483946396362692084432226367052477329949194780014102457960739678625384257191004334958649475485688695863542110771217069693195304573571516894420062075397845428449604563370739679549123535688904408995939518822145649539835367171978239580696629119651968918803116926506733753335732225062673146587852282090157356561090110044565469077"},"decimal":false,"detail":2}}'