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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 #1100000009050562450 1,219 digits created 2026-08-06

Value

1269711816367833344249526537239428149696130764217067275849059345311898957422294905731640656390627223611993260320100895982888371944493600399847065181123736203833472083261865445007081805073597736613673613174669707827453565410646278124006921299388057507596385478274608254470865852665030317266040313660923354212032820430588334897025077613885601310837302837381606773713455989596552768825883318467483073197409124292751210193181271733454060360982747402380848496369506790156012902769278679223664074300813495558224717963654687237374036293915407244191930018632071166703303844250977439078614257397310346543225135082907138204404966679302585088558947790228936031769521133072484354028681656782212185068346793862788356365596092615759809463051781386983202803763294944939110273737221084841846147538598210330554506259434504053959329846185718806286168518288111997819703852273949269280204133565954531667943943913629812354120593727451869700879956630586157265295842246394547433988047757413198434769796778242883420249327559239166642120624161917501084068347307433142612663370343669896763501870721335895915664118892604860015867610549389375602949205507695666602437503258033295649654614401894214711788982175098762333465970427996642252370367580759
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 1,532-digit prime (127 intermediate primes).

Certified number1,532-digit prime
Certificatedownload
Certificate chainshow step 27 of 127

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009050562450 --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":1100000009050562450},"decimal":true,"detail":2}}'