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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 #1100000009056642635 1,936 digits created 2026-08-08

Value

6761434478559699491192858490698603763700684576244336365516027493424619257382333847604056428189258091583914483938811893063354267722446296375214610984806642072565179246188131047781933906548311502974585595055187736273427778362807584500727228485525848601558163400060100980924084047400108038217871905137031889656321217311073871441572044402920931238897254426287558490143813957426168065432120428489529954313541768431100495151942448787451900961069189128227723040579277903388151581772048867676118167972751942604902691315982807901187104227773332617649582664972484866744648605473368140774906823958026338951981954831569819101237167704861017086793142456003573660463732176964879267115399791207066517749426893679334936398721495259618090720953399449764512534819216334220232446078700740429127223681752553776855950225766519226377053658575384047667382013280795081417356348937677885690958238704251574141374374856149990104566017201953778358892722631877386909595724742673346743837750799300777553771398316316690033434470508581905495053554817367607272093607769629320829018862770488390251444295692046900423750049132112422222891911758247017014602637253532269965933183093379417609355835068813974147006185458796488303519520236551811599251717451522558698666524336059345566966872034602246535780934738758682046717707286892323153719414882004445169410722345658306864397604262041623969201701510389183403366968294685134335563830340608234455066937110649053304578194428875604600579619407616589123825905049337835504472177791693765054804368132809520818152132114813089088797973132729473392197445566807892186516564070367095977032987855664221650139269242238669574614276231401065990155274248011728007811405790369536398690529593923104857793790847439757380347568081071990412683095319218926469071219712837074820779215711128679932419865106368120637724682515371064009987114656360637852071377678176561205608588083227049249592029941220121700746275713738471648316456336318345766614155573
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 50 of the certificate chain of a 2,536-digit prime (201 intermediate primes).

Certified number2,536-digit prime
Certificatedownload
Certificate chainshow step 50 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009056642635 --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":1100000009056642635},"decimal":true,"detail":2}}'