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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 #1100000009040091603 996 digits created 2026-08-02

Value

235170582488374296907149124937144251354466803463896891632728795179396128203621738320028582054118346286812222826716321418842819556966061699054539024638772820101935376263535951129504834726424167996491801164728286285141564551283059430716267099387237424052718966412867122491467530116120774200591659840875662326653210170232231615530380146849579102780582547533462436727662658604607574485255493508885390139314231807565943211001556648715657948887491606936459736169469146141171491774748274570954919371652735525199250376265233812579248337494388507662253422126102950523507430663491330062269571216557183757377412362741606007771618037953523655286478704824055915719951160864498157694450110928438395447565058547486146323505318315285601151067107147265979612926216213008410244651089864557278707685686819623057953203232675620054841316365082698636970861101536055859781332889227983062524355832504412098116869292638416748583466406231006313198646449890167915907602963265735298827955195111183452618923407150157726441749
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,253-digit prime (100 intermediate primes).

Certified number1,253-digit prime
Certificatedownload
Certificate chainshow step 21 of 100

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040091603 --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":1100000009040091603},"decimal":true,"detail":2}}'