factordbrpc · fdb
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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.

P · Proven prime
id #1100000009122012921 2,287 digits created 2026-08-30

Value

1370924865169173539370038416906388883622940329585211586692885404355196314162759942174023727564472568751773875191173624086076774350441194028935677261843247271889324232370101058789413733607351767375567103234892058873061978600530553306639436413148453397832308788979139835370731737050320933870221780750608699099835739177698301793333850375231536603958931396281543727474190582760577088455827167961026601665632714966661341472170016063493437789222969188990465230920263981754279685892813445620118689473903755419677185535739612949868173029801057344754080790278968438074359689364451753286485084378737670422798623333983681585817869586036688848195458418932530895897116157806941507833072287998770267483162704581471923588165109499107905663041802654294116767156752244758214971114015703917063383547628348451304357882085413952933877716015927631374868033165494195978969066482328070205544265212383685362373075012727249522251018924991983820121190121640648821694003897677854871931942080682455822688016872939465788891286201440066917365170647574730250806317236897524607465148079904882105367469322521442284968118508818144936412332419280928641999246604460028692314795541884840101190108511753209843254359532094512363665668136700716502115183363135792616242038912288613240550631280810165856955158218298957232955532895535865825651442677626579277443696732380618897874610345399411175002425531305619755845581638791005034649738721511396078300220846494061392502573544460085352008618002892506333144504023674094682559973703094467970584284052920465261258801196510107413267621718284442333713923952948977532221859570470020439493790996997841850350236451734530499933280690667104467601887818360582516291265543614247675333146699958174058667052489023875779739557988840956209950636896470046957408081900285990484373659697663499414527312520863210369353769636079645909818790035025970525820431159364226678155000762064031151684044126359272504088576379736455786587614958145247694389575953047085745540822703473040968677791658768418974665765934909741461248992963978738571229129296526758171961457567887371600855398525867276826601851729181667173148552660614610220133382931139746180308866652667482883172925837979063313776906000899341224133912291025684784895247266091477578693192982204387149893258101553011693874950389279966492633583529968826399
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 3,051-digit prime (309 intermediate primes).

Certified number3,051-digit prime
Certificatedownload
Certificate chainshow step 72 of 309

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122012921 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009122012921},"decimal":true,"detail":2}}'