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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 #1100000009075005817 1,265 digits created 2026-08-11

Value

18775315388235326842266073356782988540384953623185913043860783389908391215555541051837217103934288350590215770067082073631471108581646480255667076828184187525543933744256528018735213714916008814051633604941182467369957718657673021577956657071491957390349007407160944787869081549790416977704669610759842459303475278163269479162403063722777449395946075231702354176795497882032423358539024214563509998620072028596518249952610531505467480977210714521728886473319821953202832824236521424529048716652827060823416943744596485688796531202991497382311707247684639716336202867143785472786280836497650224551803138261292882332154147476308437211848826998570284892539999011984902287074077791547014818026481211725982341498187999750452649164369653827349514965517140967918723182264719951421106485440885935424834136919999255284494864821594943770572479137281486904308231187600485059711481022853326466724032717578274499715421491153576848087196286903864798538763321367685007751493573404506135415760532279243120774093444420083183543790953344837435803981649519823924269795452986870674839701900759256383192848359320580183083794506631536913498386474054145274921003412953495422762145272265191770692785371671518074861786663716853616306130889647875236831871676484853293164383739821703048099093
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 44 of the certificate chain of a 1,797-digit prime (143 intermediate primes).

Certified number1,797-digit prime
Certificatedownload
Certificate chainshow step 44 of 143

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075005817 --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":1100000009075005817},"decimal":true,"detail":2}}'