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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 #1100000009057797985 1,152 digits created 2026-08-08

Value

344209329875470024281597581537696959084368764393528155197893016902149417993673829485934071123638859938713686316910239708595620922296235436764206852131428732485407229590957741879197711635800316915742188284611083284997756035090870135935796858883752665388446294181898679037761128685299663998279414348692029047163872019377738263649505152028060749991851515038847880224085871522852319668816534513091992149189513784394556350003095727544553589671346914031893978446425362141591236345663415307028678653227879438168194436503133669237117655304667123381218134626962024856247234956679645278215815858170883327668279026156326565334921186864978662447045427189172839197511463596100347501472622250878696035870710882454214955446726980179827622927974671498726054492985922184697767010052972236493714648876570515488499108063623685834813070125552764585278049362572927159322471050572422446303912423369438509397177134100351832567072012780121929438070514145049961454920588458041718983645689518713666763784628437977354192428654630187269463077540009201975733789993192408815472272140278319865225084700189332429047822621345331390471700980165413412983875616698831449479818565789395367
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 47 of the certificate chain of a 1,673-digit prime (141 intermediate primes).

Certified number1,673-digit prime
Certificatedownload
Certificate chainshow step 47 of 141

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057797985 --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":1100000009057797985},"decimal":true,"detail":2}}'