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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 #1100000009082543508 1,256 digits created 2026-08-14

Value

27896382834989501732488740038661939625804625061944646269623766140480616518747566107964961075305967518829181614811779966037830031593564793676660641433275226167620119887849412130689526380084276542734018267943266411286699179651586346845352317307524979747739591167296581264995544846264278296942865072801148607781340768363286082456543354543095960441523909715193160848269125198000676364166742585414263332768075261274069540700837646317428625270836159834353442407183016149053716757685738698538280471108408681980237804663102219933171262575900537264659338565668496109567055219901782474573226708663070823677544730343160206767765908115642005518077427186238643644941455905936584059567361922627815309288603301101133203127590134779181542380154104898436044343664164880564078364515339558867881351354621943758177671156139388475143801638962640034913227653451282658049581820747856606934321203146997121667005008057029215992257178730392503500225108751695328676838427868237086446167614745676722595178977749639483913019719793546353778067840321508447714300147967765686841541002147372007742157039115989526054327001217775713939085583983908817054207865316488693827726800291049413391825935808885410687446831889704679585845287729419267071779275291756543438053231145888334970402122491339
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 52 of the certificate chain of a 1,878-digit prime (154 intermediate primes).

Certified number1,878-digit prime
Certificatedownload
Certificate chainshow step 52 of 154

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009082543508 --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":1100000009082543508},"decimal":true,"detail":2}}'