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 #1100000009043372390 926 digits created 2026-08-03

Value

10303915460667268691805452694576793011391238349057280791373591671704958193182010295947553726053916108627462546533953443347363850184308636432991803378963728450310930776828336075738664679287789499827344380844715234896514695091154037291987978236660575075543908997240091148532076032857426365969249964280459998596477412448883405600228255324979151821768179607437901292048159928163855400503754633634975590328835985295859325916647372810162581526340915713802780822996333358581990094322181496520474364587662666568718240416042991105664292906982834576407241752097466692914506287915076805829725964389927333836295508206042596417614570500214683257342348718712136022795780007806951377376648105568657178649329396054906664684116349979691134063246165436987371463053045637747190991430637064857406960866353896592196068136422085867267628164482022999444861375339346833068721900736165902455734709232315564960145448669321446448493837537727866481795223
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 39 of the certificate chain of a 1,357-digit prime (115 intermediate primes).

Certified number1,357-digit prime
Certificatedownload
Certificate chainshow step 39 of 115

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043372390 --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":1100000009043372390},"decimal":true,"detail":2}}'