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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 #1100000009130350587 1,211 digits created 2026-09-02

Value

81045112848176766656874679256418450694576076308661559977203916434256851336965363569936184832239792330946674276700315371699087662215231779844497306266710110410902749066225346492209621953618560766207566419418943262158634696309143451340015814955689708096228886232869326563322341929527127876455807805368899139348292760828188522451241594898483801660615560175996389410118412811100888327426694680061209026294119647051889245197086909897418885394147460910751970828428158124074126850953010662697470816128575708847879928724248733507166044185934596288912931662267506391065685109798711466107202338806859650361754261466997632596490476867890816383889947212256553018207781815165092560143197893150183636458363805836045282518565093330321521441681143446339735820838738038445563911519606987016582148009834886298479473005145086177465899709337191291305364522440523800323469128184600993792652792243452834084205623669350326180737364091218101854734813622580086626184469564155223003474950162852717946629865755295356486673720521715332675095591555295906381695482154920072149819876542530681869438563843208473997671751363044949725139681572356241861569520544605252441949982334490669113116799961165015023137496559207842838719207854510250827069
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 124 of the certificate chain of a 3,173-digit prime (194 intermediate primes).

Certified number3,173-digit prime
Certificatedownload
Certificate chainshow step 124 of 194

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009130350587 --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":1100000009130350587},"decimal":true,"detail":2}}'