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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 #1100000009126645389 1,231 digits created 2026-09-01

Value

4957008383980727614268687548548352370941848523976850339558668919442452632433529567624936017411969687303109856134504604503490372127719040097458467435698769357155949266438984826491211204136409714966656010015319948315423024886011167526263172869723166059269679768950887254146734887643030862653640438884959087072491121890737161913715256928175570405138029835730632795184917711122980689508881332604166529262793976157093918803196721646614468074886764512815379077540487107955387339824600892596245363496973507708878542888177527056697187576331964277978898479432544236170120297746306707698183778966317709849077337062576726422664723369814228876839219845709647956919600655981768161763217360786464078648505206084247444727828429447655802115093191338865687398529310788900049663768663207332241995005385615286697870288623930639797352777216899323047764824220652206813958785731281286414938859875050525422831064578822497972280870555491887603590658245854053818494961827620746551806235755402742965424972053720627563539450175662280922742677226832858409769104923752927868267634936906865319485340315300455256438426387423891654730258846566264561919692307621545574076624116270082987288659179810001637658036682748064160968303250984100240486013586002339557108483
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 182 of the certificate chain of a 3,110-digit prime (313 intermediate primes).

Certified number3,110-digit prime
Certificatedownload
Certificate chainshow step 182 of 313

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009126645389 --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":1100000009126645389},"decimal":true,"detail":2}}'