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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 #1100000009061620195 2,209 digits created 2026-08-09

Value

6457889362077788668895910942365874659731835697114264398915225130992978749840127496419613896390926672548243756003602347616964544128184524195081752679750000491126379217631231130996012094036583364401384558902249999709657778342564745060533564725425809024108840048185114412254543418504751912634009256484939853912658036942944638566553633049378280913687747231090005541083572765709334339054667955183231460448094334032048261196982152502937359177523011454518286847007096387106819412646375855892174383607059685415890850387171610582223265989114041499479205933067009506899092086747055540931110638890698192966698952945216125032591148808248771178503267539806619439975193088975003255245474323577758323616183220229760873533295378290378219133416744762662265383734410492836252339531515612239479129040173991451292353830749669018694949067873572419271838189325733935378482695559751379020986041618365690084439022906386883395094854521772804076562162580905915514201712936485461165052299615532930244476109592644017898442277782247567741569574674715176317706616755811182427916737168424651274113863001250473476087026641963615999272115353738825062293559545644158070814904250779613988094988018347912633326657418987817855812373398174757352246240531871950668708913105397842957542945223554881313252370928691800449922770961369724050576834241735303706433107616033915590202638384764278580937999476098684508343271748112245462761209603419798933624212464859101543690294981016489994227288721848689475313078769374789086148237598208215724040466909188259731847729593426478113522088774388628452126463210248786801133146293008670641616248546672441985676546528627033791499123121130253543881852705114903911537760648999549318511857006280007827367714389358059113488632266251466879215183367803460982477112192424112851626210950432999726986841899343385492371323423445570709340730388609873078099392071900276965400804816189680295426438514327021848714391042839707393058837536290157143291617888022845486721577020713469902671206728874775065764737967089432829891768210094687596566435093504785324461858493324430749110022518473495322410511527752098021714378596630052890933199924226056536535481727916490838054978351148994687454176432416044146602602711438694747934637423527
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 23 of the certificate chain of a 2,562-digit prime (190 intermediate primes).

Certified number2,562-digit prime
Certificatedownload
Certificate chainshow step 23 of 190

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009061620195 --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":1100000009061620195},"decimal":true,"detail":2}}'