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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 #1100000009088757789 1,586 digits created 2026-08-16

Value

20377406125076015599917404811343927510196218488866778743729734671837786815781173373461200235584313652840381953168209851364071823354723284339337034859081599789349606681386526602014712580085704192099423426381821476860478670709185446737861178890174689784841124514500577539570234249439663821302090443296849833530941300996183278214859170279994890437633063913320014626871838286779628724912383832559420572976692541217678616040774133748958760652437124557280638705404434259163333650371318741630003030712129537462347115530857467306101089743519166261777588075064094913290260857099658429606967845450556993984929312400689679091633846722176054896493999419901345877194162380203518543453347020270429900902977159236976073779291449877202766134465641779524871828927092426879052938795824270365588114274537582521490602679363950064285411440352886446138722262601409254622483927291729922420271755287264289220677575325923239142419773285270126770237537409096623962166822321132099098798918920658102850533987274820485412532456055456991582248587072830409049037626636427452111990601076542522886151530632499351571347058516477262014364818804803692175580246363702658688023394325941088464782406279160503649438170729220911894484734567320388237830534336071334093888042630536245103867585812979971209625097232606612155188333442750814501044504972263693837381777196790255188216121901670750786000146724926268230029181496390624264837991425302137513423611332394234896009593561080248142930468484505058872423530576431838347786918098234863432203799955527328455886525520560278855373829406726059275234949298389197981302609054792757881
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 34 of the certificate chain of a 1,975-digit prime (156 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 34 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009088757789 --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":1100000009088757789},"decimal":true,"detail":2}}'