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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 #1100000009047329428 1,223 digits created 2026-08-05

Value

16889932802315397321825826506356548131550376901607939859926830244610200252901169621569067866788062540703470860881235703990089079402670759458060539107313905458944641370878640064947425683667448712486910574382248776309540841813758432868566712747323587565018685566019414690224219927297083452955717689638677265681527742208370322123174731704894270254885600951536937224579786545063190844387195982977135015273356787711199211954703220462750576398995402995821446624345997661674401743950957557555482418360798673737216257171354987761052258990685442511634073118562927929362379793969036968788486939598143644925782739437158804525764814753470652261442937698286347284596466171824087011389414595066112244114688761172024821604367468712231325948956798628394883996279069083639028700311904498627101532033970672033564583939279809902989580353303735083396446930497717947554180442495440681954064641459100934778575459402575692711858187282978048558869447556035164547815169173854037926895020472062370207526401073490446926465706094271937747662638298501310941628152187967021978257396942103503278842605676045911370908723508931460026143674841564702325375998599769777959341439327384264312178610464338357370391610322670046290952955943330166590424849383083079
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 18 of the certificate chain of a 1,453-digit prime (111 intermediate primes).

Certified number1,453-digit prime
Certificatedownload
Certificate chainshow step 18 of 111

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047329428 --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":1100000009047329428},"decimal":true,"detail":2}}'