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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 #1100000009067009962 1,694 digits created 2026-08-10

Value

21663039302228882376451407546663419696604969459081521841508110250999845097506640725377280582989044681722175751824614826769871294340721879575705750636846094421421954383123031885081371382638842621916607737750547942192437988707946956174101883671846735077226325188321046147596667239339378701997329542083580772587315356462502769417963328905192770622951805024704723752183403513753417336234774989373758875230244117283874838678716471611316162247705114877430915813335249136368227771985182354543990792665859032200631946341315674420311771190218608519345756487954661615025565332585249003953762355236612254721122941895257335437482506753199265554221760218006418878763106826419446974357670223448000127003685129788123232156348587006048170703213849788604996690394098948255735763922126721802727211197950263660050450979617761002103027291517409350799001007715747087184307344505273911540100570214476190021418442944880417141439955237018917729906687794086981169205203688723057679867894095157351054486918140404888791119450488137279686625142492604558555410561993697057921412884396171866376389552331352667026004805777986281808267961921742862394725294120675685343870633570340911352510137337921493539076193017315473584667287880173728338918274381889519184808446265064672317856008043731656477110020285310877798648419308862557794731884865130593640372322954439596251054102422776387325080204299560123347146737986348390862610188261806030005625889735581061693464221868746405684825547734819304614997235526850649762582423323259280325417609599968625898071114792021146872887747947460732739534603717675302830716852234711742093589523822775018980026841064974268351141484755532018571652556907846537100758473363613204771846779930469913777
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 1,728-digit prime (136 intermediate primes).

Certified number1,728-digit prime
Certificatedownload
Certificate chainshow step 4 of 136

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009067009962 --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":1100000009067009962},"decimal":true,"detail":2}}'