factordbrpc · fdb
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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 #1100000009069115972 1,688 digits created 2026-08-10

Value

20416015604285506611710979286646033922593814847674791855169533814833684263543292918611595573512742904625826331565583323457310274384564616390599790282919971557959593701722058546775879187596016699895378074578973082428487665260890105722199437300663880076139706614091299860087260651233214916067574771983297119592886143110626106134254433193391178192348137482251031663323463826514466112473043412904784712880684321882784889150316745116422132634944004597389485269937269042933474113016460720224751315060065700893150466891996453298085196173571442689576665225745253082214212156555604063597426343985395624388888296725587431109382061811511584206043046433564641147220720770670522279814355077816630424266104596020032221920807009184282466672715934470655561398849368396777882586053409481244048220389028211423970180180644586732294562664862182407098909708651507340607692265632615065929064968085332525521504108065315698948827447515964684226933884528118188783183744854910856489178638542246190853935073712016300543088099641450329241641849210100020938510714083175031912116565488605011655306740257662663827467045754388367906152062729882378127934432929397984527645520963208475120634102107979114104094094380558727160545175491372473237892224311013147556360316720086862551501651274253382770008843197960660477480824285887107128731612066778155628888065194829224375101049226829517997819040183723828931756334285796966716428739681824767158868581218205485600272341745256358107528821174821350725734693596877469646259967493379498434754735511487688656384096499690757585185401102488267055479807855207609763835252117041138263356438663865385231750051770496696228003543912617432735414502326749902407655840152096313529056494152593
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 26 of the certificate chain of a 2,001-digit prime (152 intermediate primes).

Certified number2,001-digit prime
Certificatedownload
Certificate chainshow step 26 of 152

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009069115972 --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":1100000009069115972},"decimal":true,"detail":2}}'