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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 #1100000009070502356 1,960 digits created 2026-08-10

Value

1663782562668529624290740462300487618922097361504210724340068249908844819946269614779909522565632952985309955571584275583485815256477177306968813988403901613815694183482070725024535609659591715777562805366533249443002039782210745843129306726843388618149468910035475027638721226311006291378776043504197087519921086013239881702024455768528021298622353734932055905969467880864135314854469030116877555235310951723382213880654117898628398456713470512032985106346162932971497140076982361550044104947256011489455217437198704693063009317925466726934484224365955419236789489764193257623225648565866066893973934335091442275303203632935763984445829554031550340454134237494086122269088643710367422370517163898065486390839338936312195162369873849508845773240574481368237773022743610804680067123938222360820633119942966165898929119537975058355356624782216750723427897461873551855311414060566598412543064403310564556880644866561617785428846971899816232786305875962134128846866740211823439041070252578128436994995890241370443401791365607697186441265100416764813881917087147137887921353882297131407460824411279022578416991715210071148021552563699933118916690491614676592329886609399354967589345924217228226072289180944013462833645132055882596725815117092514214086537271525977227859193955815255343509340530496295203737274232710784525498292681532926563332398817026770763376804378640327628898254054509535759262917713411468307906300341850504413800331009516991776380197645390266118263562124397517738746212097301019851722303517378629631183565544887459796610600823365358203300329287045985807529669491425132215536366159569034800486635006463682153795734101329695635147892506492635020335313109078664622010083072899806885446302590126956927508434319571177621684186375039630167393728258462959849593093842217192164664652513778988355795601073254494839990683727605246905596411325275306793526966596413808879057103106874682682609736722106511650044496158742946885325394753093779819252086620169331
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 40 of the certificate chain of a 2,498-digit prime (187 intermediate primes).

Certified number2,498-digit prime
Certificatedownload
Certificate chainshow step 40 of 187

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009070502356 --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":1100000009070502356},"decimal":true,"detail":2}}'