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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 #1100000009041058928 1,207 digits created 2026-08-03

Value

1153342211747681606788798350643404256794284872656220633054514552849310163102782205871547620274999928312912988089390383733830513553160142282210389295101519105057668413640283942659759793712263256180308041149128303846566826187181033543804567993483187730848715044076821567898105745324160094899042973599032138483346320078609235691921255107137631989022507054652683674807452173192649124949032779662125348648051844385745523968806850906996555587954204996008853630683804648110819573206461118465781009711606049360803761500681981266158213356847164320724902144731386799702015214377224361551130280673813990550926956721705604655645593966854560841949369224082743705737247625707731651327029220821099808904388705879888250658465992404773776476011077020576561432795222638318447263976678631557248838761319269422588395830889486113577683799187889769541717095653145580464444659670593227974658520198297467478196330964494698015825965561093529330253805733496251743095187680294022401186370680920901201020208816935504582313251466841415878163135458786511734305907466046076460646546042728954108883439555913587639450661253730792489726369276554804951996169958135975494276314004993002546317357309112357798983962781347721789979185186452267737
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 8 of the certificate chain of a 1,295-digit prime (102 intermediate primes).

Certified number1,295-digit prime
Certificatedownload
Certificate chainshow step 8 of 102

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041058928 --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":1100000009041058928},"decimal":true,"detail":2}}'