factordbrpc · fdb
Sign in
>
?

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 #1100000009053333550 1,926 digits created 2026-08-07

Value

687745777789897138853077990839434795260102196475703821292513887611618497370471084013469170764404855838672955774004705008785782114122919683139295901946483344564283251243230136791622194767558347652427605559480592952606988792569121814731147440333609021599325139920859559398044137849076103270352790607334956605231264051338823728057219139940386532816696880204012383661514248798996489370956472295783771601188393382399874666562118232130198112164643342158459583958928129210518731682031776187914756912773768852421063293057507452593995745259120174368698506508469807187629212720546980862932924720458197335883603679208320806846817867664744826463411427439599154048131929014055716484743669283592136075750782911052804282842187635548125968752373259791668827478616082571102520336066242443246748232105452739567257744397793174199045669621346477315272871936187662316353667985897150497689042082627053018591922800692123230447495412059800288027835091681696023252754642987193004429699274392059557094130230686993291593744493570169386803224639910563755416547231383320747752406426325022156339043667536417387436687096982630657363201785218743516189315880915300549487287455497758890540080362116203123431813685770264434629985649797501690833235135176316158876420579816897698897633902604605556393112861070234080004450373959084021349248087247126159232589667418851858301216537025641189155664247730091676179677003456863599867221846300373286173386227295135415930218020835182420149607752941719584400658564352200915872970253272137733419003297923775895666111190745407643074725711578479673446433040565524136721663477844304669506756156808013947457672913231515686692593224477725313636174514157060159855603139963791069461171147639324971138865911953035027587907772027367571305882851821077011452418969053685665489726589550792896193178180259451847880979078112577403281962814331577092105018673503414376368968186863664489885102933806211920956889144640833965418565475572798639
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 2,400-digit prime (177 intermediate primes).

Certified number2,400-digit prime
Certificatedownload
Certificate chainshow step 36 of 177

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053333550 --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":1100000009053333550},"decimal":true,"detail":2}}'