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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 #1100000009075599625 1,324 digits created 2026-08-11

Value

1649887926891710488905761375891383735517182307347131704458286234317274262289929921594410417739758671468842541727163141336405079510650486208534118897605721209604803840565023134210317860056478170396306090313949145077267079365799435002656323454632283682193510838834928452609745446737548023686086810805735503222584381642416699706096559146036577556717599908432288408505659388917729661938555347486378658911781402351210273930771595809966157617602370189544468006114573459581486020072588766291385193416625714191645526898998762921095466212905825829423120376626371740734905255190001889623225305208762258659693128769050047950536043973058520646025214488745943615877551164496094799235397437809121332319615005903026069012738345144579675668892071219515860544036766803424184801777715603831324949013843515567442901395610913713735236827227328331096112719535042948149671871720706518278988193693654947638251867026000481656239396309932639233365638183813965162328499305912937571509643557350436852990385942985262403919732943915814138571674014675223827570052446597040889158733778975645607658884644775958875250372555492775666877022047238315441200376289206956433858061447545548140169090628080775881787507051201197067001301479822085063061326147721380073833385398619784254636961710177433708938144660807947314991736780818812853856432709725533981606297967
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 62 of the certificate chain of a 2,130-digit prime (161 intermediate primes).

Certified number2,130-digit prime
Certificatedownload
Certificate chainshow step 62 of 161

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075599625 --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":1100000009075599625},"decimal":true,"detail":2}}'