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 #1100000009091290454 780 digits created 2026-08-18

Value

127759528701582356309855245408196285802312553732196435248936050981820258581075972033386585815956577715180900972858173981187232129115454076381676487884461058144981416857662892364930416675211571147319864841429164906249828464813752939220413639419881716523694628941061078615452955973982403789258421597556061793840524387095977247661070458176852093224751116847305779041780013550016458885023931412916733803296663951963897798580272142294138446010939629253334097447548597731000178357833178859258562494839851665484393230942142459902639852000137526787096905554850574452857729692826361861971490892401588325835568027206302578983175969230760809251616102611637701480211143115732318258224954761098843446072623764306485302334384636914405057927329736094897399645235000180181301847650049044365989607
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 85 of the certificate chain of a 2,095-digit prime (129 intermediate primes).

Certified number2,095-digit prime
Certificatedownload
Certificate chainshow step 85 of 129

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091290454 --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":1100000009091290454},"decimal":true,"detail":2}}'