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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 #1100000009055122629 1,948 digits created 2026-08-08

Value

2374935948777489520472508558063374216220280235587281049474829018554768492255587843116300928263743458397697728111625333388209902298239101995964233627435287369896285992743430309660399683609414712691983632996919187890001008073576903216383887499980625416511219637617555171769224038052273388138587868942883921764207610872316627004491864219184107645903388347967318927929272165559091876837035880881282731476070201350524286517678360473263905328284844817651487768690815876834463485185053727176384789315453999104450242694893304027713137088662094336005380620407206877800252867100143940955553551508000062541451424476569462261877025602520911724904136426952441077053551297478779410031337186056500059021028326115321387307526808096338059076927890694836017930211329390878597071876663667532218602093051217651259322541462208630480994424817403085087332794203515676818907260039452991363265387400024822713636833722447622638630217280761285430964396915567493921467925822262579846186185691858562290367929583811024879699299557171905961656011233873036711647144951773488017681222888946557203039625218597445142410329053985020025141379208693839934760884218125295740423175668245474597958887593247039927476154475529931885842157640222219187229472232687847171440320889700946934865227498792231371400075122782243072263481215041336164319744571567303070972643799404121454983503715412217697846470162926653493244362535923285775634944988593193521351711396721329178894393765072979218908233675837825136416950360294501971156204742614778460270846756497595166022025813323982995469614906540120366301796778826556667441771540902334917688805215112781763270809011281354264115890353411130543568373227399004592892560448037641900514044209213779503076282723584006827234468689089588780620741675016738569836959880610318553783931989340576743726823572778084918864800080171990401272368167409887626356124471318986113090121930114498370652008953630112202661400453343713138865961438868244801758344107820110940451
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 2,419-digit prime (185 intermediate primes).

Certified number2,419-digit prime
Certificatedownload
Certificate chainshow step 42 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055122629 --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":1100000009055122629},"decimal":true,"detail":2}}'