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 '27101152936917673854477209156409205295702235492451844770325831884643577724915146269593601682316099951607994826597776714748602548111801571652569315664646748354898968204384738444534577815555902036135799164436416926275631184750818508255274372023680391742994891570280252501909044657120037313088908050677961292950609038664531822833845839625642022916242324626666829930069987534022619843458800463932258765412799173234103917899373578054102316925594247053408007118033405377183539446585647769182815917380238917015189911696489795627358103850745294773451980033032063648737965351361082741648430291919912947854798956584731481972170946716946574422930607093112051842511282516605852705909872839662166795232825635530704167168916111301697726746709357308798289639798484754269740849835206485076334023144268662178097792592812132085850019403076779251764559268271269561940891170475778175374836078444315463598945912739669641729492778225919218390111136542803406823819877414367175200992051267889468913883411287683343514781849619053847313152636975360460922863507701080337202680448557114433314288996016401' --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":"27101152936917673854477209156409205295702235492451844770325831884643577724915146269593601682316099951607994826597776714748602548111801571652569315664646748354898968204384738444534577815555902036135799164436416926275631184750818508255274372023680391742994891570280252501909044657120037313088908050677961292950609038664531822833845839625642022916242324626666829930069987534022619843458800463932258765412799173234103917899373578054102316925594247053408007118033405377183539446585647769182815917380238917015189911696489795627358103850745294773451980033032063648737965351361082741648430291919912947854798956584731481972170946716946574422930607093112051842511282516605852705909872839662166795232825635530704167168916111301697726746709357308798289639798484754269740849835206485076334023144268662178097792592812132085850019403076779251764559268271269561940891170475778175374836078444315463598945912739669641729492778225919218390111136542803406823819877414367175200992051267889468913883411287683343514781849619053847313152636975360460922863507701080337202680448557114433314288996016401"},"decimal":false,"detail":2}}'