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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 #1100000008859756746 2,481 digits created 2026-06-10

Value

441020095990868631579240768027707630758793088001899981259218034645628638516866754150248289952297073532528003095740837721235251201374632841256208797714494574086837913271609883953155394659080143027944486047968017160595978230276402296802095650761414780394244582471802293934495448265480546836025882536700699689991974241157146409945049804548499009278124783157569635380763280314406800030806704409396666062231424017016649588216940045958241391911602756687316495683451354673683116616651413604621142606350578712105188973240673243092674464739311159270888547653363808869417622483419250886926658228819510321773493956302503050135373024822742447320170311342566035227477722410633768416107832899453001218123779149698526771546591279219615179780826354685174989230603565572912053019424324619142979891744821228510432862706694453566965564811782441632387978491170185466675314571024496322789465522630372893475251574462207919433890798548715955871511108293481534217086348632794983971463653831925300250138721748997668777360988154238500602135681993625874967743527364149084051464985967154817396223374550051572084623117380747106635280746659758166956426870964826283279837329002355252505313467599449719893686129979803523118612141859501298272568132293928733188196477930234587535657199729240395495197050137933590607656462016859182013278101292343496598426607770144737403581648911228468458907910039292805137187987043249151617865440048573437318945422997403552121219260240944425738674047393061441699813166085370326589994953935572189958832161837221408379849665866662402591621127946579752135138135763129489132709797110737322564528610673707969338144392032794440551861633149807549522944004552855697146019743006724246174341671796031537314041854901791153562325990081932847984712065944432667275589713878918139812281832461275695056873697296587466061233953998431896320547988297081839538679100584607131342244153365649290649226378991579206795877516708989665710505637956869395131166411241993129400570363173215456438722223566350832816486185610104441254730023460507167182536533582336563653877069855069791439099773461997391537765384327274851427091699595592666739442191482994577609796440943769584874405495982326530866170018260313867212774477792265362352532596741296195867796915541223747224592868128131799199909421291298884549771800011780844853130700907463002395287221747721420316161687318667128840473455872221634892601422904972573370867469696522738341335917410154414622323551949812337156724356036617987392890389253482380341753118473811
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 55 of the certificate chain of a 3,239-digit prime (226 intermediate primes).

Certified number3,239-digit prime
Certificatedownload
Certificate chainshow step 55 of 226

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008859756746 --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":1100000008859756746},"decimal":true,"detail":2}}'