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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 #1100000009041123629 1,273 digits created 2026-08-03

Value

1388147824905587927036092191624157857073320367804651387344770823057659194316067233689392776021183281733624374087293865830147472366770756965152747957045432650275513672227382826196158126936166851333542871303412942399302240685881462370375915176612270884277846176785547787135839807554079660096764786763528749449744931324094116952870365096590113510645041550213541905035096619999535216405641248988150147081047149471131574839065739302792346819132607350907545807491485314947966897319211118529591942217052517702086401257582358399662619248875154512627757235566199781163048919066462085914786309073241675964765943292251522268648402613618769322507617143330763938124573926781512557343980726449586503508662781170016949101248145995692964790179315390858389118776743289309595886278024053987090343207085547728296511976808703924142866465396178730213686147775293914578911090477221918934604923050264247280429437477753826214072333815260598985686107368243368797828956562637245438910521284658513675538653432766294224049226159855109241337515711413990143888898046809016753244583393411197462337829636962327032108011231446548751675763602329683808206271241401393677411473559827381354791481333203499378782498740641494497903871599281802656927011735420497511238281601883712093797951912856747968271170240057
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 3 of the certificate chain of a 1,297-digit prime (108 intermediate primes).

Certified number1,297-digit prime
Certificatedownload
Certificate chainshow step 3 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041123629 --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":1100000009041123629},"decimal":true,"detail":2}}'