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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 #1100000009052397905 1,272 digits created 2026-08-07

Value

637667792410592239532351555770221010970986636931448645317392656944071515788189687974738908660075028412570219225692306330641915734514158587627985875178598628298149649219101432301701252492739182888531232561506204824920182484013420828088204287895482422462617091786275239303841064629987179765965280427222047442961655536334826822484931707859430987012270744630284271620848646582146967381219567295078915502475031171415459180277335421277492618210988917723424240778251026461099260727238787542251278421451388860499374043219164540650856505446075179906804009163658376170793428055057269876319704010194091998082914764815125212337311552637661408353733664534600167321470855248615355113308254797016735595190566756814164557997944997507818219049471463150271166586808587968615484030281165905893424038653143731112645584290391202269351324510043976995756599343762698914007179843880400938392695687709852803567711284972121422155023157366812934767677549983890298789316853852514290157387949393863375639368545635648002712917195459582379532933998927859689759659157284121753283672370806410406431208159525683217575640877939650552132115411292937652834773278378647985680534710813267903197688323385278583847154630501923274893152904728203468866316633807787541804932183098077753993104475466048062750646641437
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 1,586-digit prime (120 intermediate primes).

Certified number1,586-digit prime
Certificatedownload
Certificate chainshow step 27 of 120

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009052397905 --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":1100000009052397905},"decimal":true,"detail":2}}'