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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 #1100000009050346878 1,466 digits created 2026-08-06

Value

16509819329814972233761701023056455334460356708873751695940888013214896878265128261658517428721667511726682300870777452825633285922170504722596769146936475302353741154055652099074600548235365300043291246022197517237634548867346470198190642605554956733209546518986215873951279822567944685762158430077781440012970003922103315294766730269302813588720412790546259120826234399232603719623344489246812745533045128427347747050246571218666005979698582462313745885921169764274564527947958476943797108370460921601358177299445065899501361772878226894054193982650109233717272209205296717290782955064198593824360978868400230505221100371198052061370737895844583107802960369416008262428978061501057590639332014538700359071120747553084467090982226463582469681790520841127190235651041428506791884288590470608716996268659742802062012218463474969220127245800727013829417990351643144171015637574252999640827628679864998367015347762281435515788950977256378018544361175000568457549207844370794642875324530154682331864801182092264344774142204999809207359321148888855677296868863018513488233729673268865342905595987479723912006610572315836428274780671407870483771347687236458383242428085364381875303510364164343626161104512033069777922397677675144509099492639708597172239544385340304659173425445493542035439409000049432244436703102624094723219010001050029941556254285963997715425926885446335752044018845848616650471585759449198378491905607028983399198794693319156291744959733646419216338521
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 1,525-digit prime (118 intermediate primes).

Certified number1,525-digit prime
Certificatedownload
Certificate chainshow step 5 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009050346878 --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":1100000009050346878},"decimal":true,"detail":2}}'