factordbrpc · fdb
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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 #1100000009062631361 821 digits created 2026-08-09

Value

20361884680310974245960995333689603056009140889911501743760281460922833183060978738987713593560439183968570793171738240082551843028145775732351135528852628287161559951222847523941559283407063310780683414881269924517521077356056865109361828649915838197008382287790236579649609495009594485071925864146335051727110570674844148229949153030051749508155528562195017525068378325954431628758054765435431801652419227044097235126865754728506442471797310940566204822614215961680924774583078061527084902321851323300060798199648395105368220838908913731849415253222647224622949515218795944615991936534784276013556215250131878995305364860182904334919004425024257424342556948044997183049660299225829545841727484492852028415903271409205988675735800369742690363511498622150219871347705741301877927854564448078653351169396098367311789585217
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 1,696-digit prime (138 intermediate primes).

Certified number1,696-digit prime
Certificatedownload
Certificate chainshow step 72 of 138

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009062631361 --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":1100000009062631361},"decimal":true,"detail":2}}'