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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 #1100000009084104970 1,648 digits created 2026-08-14

Value

1100931650042757559151109874597558515638137450485204923942809056422692722288733804719090647736046251094608929132796301472021964749531103958820680422016220230921149655095311276908342445399630691589137739776685664038735221791471763858385601884243008245703042719011187881332513204365923099938064930013230364647090299056571631743406977872410562591323198533716980475915105757286535585671152377024337629751859416530132047876792039541120077258615224419410364860057203572605160449905354862610480123884889045261167497336763225582277119999678608718051214140581255012116823777437723845562051665542270010541954768341799546684435112614394160613772246461242401246169759653380555284509418914151465409262520030826408625877658448238101572197263541628702653233519070705760397350049682089927893638158938649629092690754051749089774355190220855056433652658903964901031089158299806827802465320003229602722134002142226099999379804540904258664150743466033092398402866297679241637497717433077024670051598453658546282801102250918372912312924268059417884080137718743043911551524408580708069632554217460953028030373267783494352856934901374358231558634867803966781299894632107575593757372103525098026288770804020581476409827029355826126336285332770025459803258272356079917665261575092774660376144202910740479114744215389835293944431584158233042308948108092989423546318150695170769257325116843141993707548540090186227439911097114947096561002056429772091922132088934678104633353820828817640038734559328387697353175328783086838290335583799428424952271925956118810172701342591524257983872035812014687423695879600492947906453905550942336259248661610411616101393978148781159892798823
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 1,943-digit prime (156 intermediate primes).

Certified number1,943-digit prime
Certificatedownload
Certificate chainshow step 27 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084104970 --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":1100000009084104970},"decimal":true,"detail":2}}'