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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 #1100000008799243643 1,667 digits created 2026-05-10

Value

16446088886095970411405058847971410553277693906674239861581337043693491930367730647658930381194122627366277370825868818661045464095567827117268600220189965848958925866538296407739156951345040890099306126658946347259779423361500525117176114183559589523304417233672369873535335436665750377415542382974324791240193004391547459126125291994058314127967243164458267522747207869158898036071068775361916763492419538978141507747559120589315556310680251825909801069931185333562806356972658118811145629606952032718612847742039743925369944613544333974965164837090099641160660143399603405223550756446039917299877433346270094706606786797370962232727211119549495908848674245138120026225833019146492176007355593826881703424479146442290465438870499967121387400934920544432149455937751997645958403855707509154182489120818440325165273205433498871759660496824434953053874566443940333580836221326369241808677153226063884235567632695989933514788167526012084844944522128147677142198183887396567641139498377054684058095250757979395377788282382003959645898227123485876506712933561583366020697599157824985858365621111202066446690230566087871688660460018582132692151417993289047205720374324380651791831100612762128121340733244829636535268545163379536830534395342807274501136670115026512971483093908272585480484646170136644051130320267507513730737202675396032830378676425515605918631418164225555778907945022134416357067024991734873696681868632652203448600684460757182270239694518076546889947003149379789739574549976270176846919445827259797733954774679130938948002022381233827057016001279305827838106350027220449253623539955955903485153563738404384375271301609291632902640783926485175513636598867
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 146 of the certificate chain of a 3,883-digit prime (240 intermediate primes).

Certified number3,883-digit prime
Certificatedownload
Certificate chainshow step 146 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008799243643 --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":1100000008799243643},"decimal":true,"detail":2}}'