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 #1100000009048955518 939 digits created 2026-08-06

Value

107197237840847010914227074975799946809431589307083744682933399984571806978657210938242181790971789442344658231398332467591046780573580787005216053087135914004187100374215093739282331984602803134090486565491555143194149559028293046026566292964847480253537783380449503217327042264361489047352866648312880494832328584620133173977763247022986376234974891170056449717394376838385423465286091813014925614316814300267448189860648349916438118135209013150483331429146534876883372048153219513808237538246457589561443118704041936878541626055996572965042131130180550330653811977391549067495340511148559534515122604991288825054036136986168487023565634833499607914488301679914873308081692779091545560779889727206647425676300032586721617790224657511441377487215935955259434774288820161746065364904398263780943129592504097597215276335087872218850479791033069176070838096957409454362958933545719332878478068992576043218867420594710049270695039836016387229
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 48 of the certificate chain of a 1,512-digit prime (119 intermediate primes).

Certified number1,512-digit prime
Certificatedownload
Certificate chainshow step 48 of 119

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009048955518 --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":1100000009048955518},"decimal":true,"detail":2}}'