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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 #1100000009053879817 2,192 digits created 2026-08-07

Value

15856057172197456921383300410157607964952298836037865679189120483366664999627456901896733641878836565866392859823532185779862754397414521299401655404386115939845409282038054432148200459220833524832399081555087569369194425897097610056374957217585439616277890372036702154876486208124134169914376425673964600210376288602376545236988635424529154400061876858530254603199593198611200546464156689636270088677677123203352445536565428861602167346419774335050841980166192639638376622779471004230709090279481074971887716735561516769175205952860780529716862651168010072761801860781179217154674256800704951607664685088151376919519717167773557483959378101745765796952993134678017129635860063693802767897133124220752697821840002772067586505187051646331943999392721123204689819246005723370402770353913625225323828051652943202727191165484502243740636595621032875793071619674767917627866046261676221018638424170496628397190743907941160786031434746469518460864386739269053100165135374909655687206387577135649221857641875597591648174067137394961578372660265903296046275752645524872342587390707876638573241373853726850533056967788876433545709181950062789436207974337189108454444988527907307876528306073781319061596429006248209814176241297080694432144833901084582681036753659846723510229902287581641009903011238316907670441216532868068437518959531862536873876180566145443193840836423628807252125433428556170812836884205857150630354628886503719783755225772443752141435776407127276194906734048808976549287178593508712471368108611860212855626268290580340590158680295717593383649110525259638198822545180221078944008878367734627110620867587297496192307092261569632857702321274500163078352608267874910842775492460544200006672421091632963531670392550194927696572018152858195129778594169943328682555738927618420072469489736340402439053027269528051185118538472247528576191289663017826714563773655895852361518315021521750384250454810960242502818484354224851874678157313935496051481364615330798767471470087991295707186600787769795644421552940951788050319450397820570270086060719448896239462478073334230947636276585268959597813867532006066005624151876515208048981402457162029686148671326120759312462455504961848692157534071059
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 18 of the certificate chain of a 2,410-digit prime (182 intermediate primes).

Certified number2,410-digit prime
Certificatedownload
Certificate chainshow step 18 of 182

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053879817 --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":1100000009053879817},"decimal":true,"detail":2}}'