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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 #1100000009055131216 1,575 digits created 2026-08-08

Value

352284908342121049934862103237816553350037004073168887887930220630147834418482836975217449058190970054579139707633949384792129042074737211979760369198738800751442823875814402464304487958743737768011965262253133729088018224430527943362645451616923479171304140014130119544080970621917023509531634651560013131244329791326115647411743155046127106127209656804814529383009694463376483656906708210428172535533873363017892215635559549101642764220642821192337081619123037729221690928919308336403339648211677225948841225377169018864406789632310654280211949791654421731984019503913982220908075838384433324333869214877636495284895770129341982425418041674132838901855974660972822233817614556314302000390517440414076316390755896978212084027998399184119003563174116618218647112370946237837740332453697510347328498089075100357103822564735876569114758534242072225848191781847409481686044953834098231501368351675789522876717634660175632709208454116349658780310028644769249189973660849574599313416355218582859119170037733913242783640136608365424616612901742777691333037815490330033746904981160456338718273512399829945790207732984761928588538175864469102181698531357025229555312968163486732462553766164806650074651849109827293241542119124153367071715905575619166259184261802423481519481507454399170878326591768067196447093345029408413055922949334762734435249391941707388150395204821897050908268301824474416965755664313667805511284451629364199730436196539220799955299942503067408928399095747217335582851433646106059021124426277027791101553065751565014793535206913925023178589511386699550452690041
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 7 of the certificate chain of a 1,637-digit prime (122 intermediate primes).

Certified number1,637-digit prime
Certificatedownload
Certificate chainshow step 7 of 122

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055131216 --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":1100000009055131216},"decimal":true,"detail":2}}'