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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 #1100000009054648619 2,118 digits created 2026-08-08

Value

128730053495080236529405215670148395459932417849861934383564863169872414419580615434006254086201262360573296607505198379591324998887859187930954839698744497753172894925327515120251894118406034154850393827790875874534618425551360952310096010270154225435205072332889465032531961671844181972968939278074130900240589505634822400772245416179446024187012523277214945258891651127023680083674441488128780609830054667577760805159432450154219475684959250200093867233084718372993179644903356899709085326545943594464849393547666692852415947268923423147690564949113872357674585858310972821343022635967710577421381066537949667480012672861912324202341206923854927227088507345584210589239550605607611935881379836726752026765771383706223953298812846699734722441285550393127868135434092038059912375374264654785547278882970424203877588145359458224532309845440453657978416141721214990572614841117786391650060993289806631659043537966395210927206034668919392724689058760977307759337439868185697226986004912897726587167622571136610058546110644337596175871462701908176601827803319208114529730625814636414808386162782001217625746052998820698368286795335008972078025974180582892212430940859785157471221242261005973482099066521367055493722471529452461686536906192701834297294639183903691833378869647132328501822292901167833862959181956463455593002034848865683221141171248907200232347629728825293762276942545600785996916376799693200211515777203188091778878124208595790412112472060559211453135008188473910518767534690549580972562946395653340466731519115043964261365734872289515684596990462379192444428418567046265635293028180317899618851018628011979016863450018107964466628177064947807126033937238561869802407244037773069553990063644821090564947554400834695134670320019642834425730111045589599839865155152320788255203208068945095367513015585369783231871881272708085539624638740394625983714103206149519350572394520082652134019420688592725817923424848811699199743854205442550718590419782580726160417343127956869338752492879209116134416056392489213833506530407641357394995328093831615821892936276790688220033750414697363116203223865171799415375213349
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 10 of the certificate chain of a 2,221-digit prime (168 intermediate primes).

Certified number2,221-digit prime
Certificatedownload
Certificate chainshow step 10 of 168

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054648619 --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":1100000009054648619},"decimal":true,"detail":2}}'