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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 #1100000004870656253 1,922 digits created 2023-10-25

Value

20506649217079528928225853344192843476389877202332493128648069461160517059829607067992410174438556073392031005946072763153666416204128437669487910655691905442317996472373063624699968577371722304496353971993250932016998774610688970141338921157003968080120996154313255044031071087013945952333618273209094350179636641843625633720730760674254365562385290127980708755211960499351465661166122543921949274784661799452944374477160611055255345585020748015801816378753267021099166046240313595898447032138986058277464197016552531601342072259221872119631109463163356042921433013816112282710990657547286673888659734547745052418370737148172558777800140583353962191811307186722619419634286254675933153602922859901616123141063663640342067076391097328354771181492142664369581696436803918571552808676171383405926770948711369881430818369433955165388887813084325950326785344616620997720090638389970756457327604730062584989861099801781441735328588692644469867470540528314121677701910207236301391536256204029577903834823936213310268637475241423867134483488579201195934858598295682981012153576870587208347907446614636920631411588467493305104092776576315899577921305120861596729683028059823447966846403499304990181667972472815058917315628608270874449892441016109959824075247611124093283061454676078639541225922567718532205611013014650083062286996003051626611437534827316654393709239291061371566159601907544998154717133008149153380427332315833985599531980767839123042929653812970992160008362497700701783630709851743891464262531678496592780955152102344053656203780519332774383350262219401655055165515835381511593217438225081223941861702798013323000396099640155469361261350690859475798220712169682091891634317038683577411981308918908752658634550377470698587776664924460606591963186981518245747256450988650320848630249498067192556655145741392881309660438467153994018512785599789645268403709192985041562208961346440977888270127875755002705598862607641
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 70 of the certificate chain of a 2,631-digit prime (295 intermediate primes).

Certified number2,631-digit prime
Certificatedownload
Certificate chainshow step 70 of 295

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004870656253 --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":1100000004870656253},"decimal":true,"detail":2}}'