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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 #1100000009127304560 2,004 digits created 2026-09-01

Value

528252407010031599879216879672358138004509817344903788393897770143861082165511609795631063461542063909664405531384943701110259789648700434689513816112148241416386095258537361828171532476590111805190344677595340079205498130894303752621646802282211848973994664610673662879636482213238838072725609809499053874364750591068221606627210290860939558765479753250368294624565064138539705404257025408577792352078100820756325078507721471410778882235115218331264187003907552448169378327497464500959044933764643086813513247052216809691136116489522849251743080329841823177766904827321726917351636321643860270363333167598743579583319616832900205491651867373735190523731521235671090419103776295045337999250796729395482587626656309058579939434432651852746131105393773498979738031190698951790926856217415668251145359110578554399588114794904183661787247333630285109127492398155430202984815448778277724969295592253418802275543016906552168370669481477430666267727187058444127013546777868060928004497465797155028748993937248306440146844130699864077026468292957578784662864669113084490597587099828980202388521590605866278195795559829705578764497877005904997316282853832121277118396348724606119812230954351506668072287872189792616866455022867959095505205280056288281265689716895210152905744186774781563934168916464747549825522126220944736624738073003517333221198991069486451172021429930836373973546744319843274323330363216631622582747672021596279774600401855483052288736819605333525074999345848876587386507937093642876902183186516816148835332107317664088942857497648859420581346257837759732741264394883254158370846993222510511588979079814702105051435853085698502531162870193209842287828318827239085608536084165409704290361139338393817428123691620262321310551044720082576418113497406042117125878156008670058837107217170859024539152471485778026140652716547598878755445184421912721534064628770532281657433947560246882047612618154893291220418060857864398312856236483913157091630313538528143341588374539083726962058239703819887981201
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 108 of the certificate chain of a 3,105-digit prime (328 intermediate primes).

Certified number3,105-digit prime
Certificatedownload
Certificate chainshow step 108 of 328

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009127304560 --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":1100000009127304560},"decimal":true,"detail":2}}'