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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 #1100000009056517689 1,259 digits created 2026-08-08

Value

18964368142814620295995591426524683107577414633910320895234706667562267819294297065143622415013934883413657139618614820353110487632579623348380416925572046316442017109533975259568107637624657124839820315504480909378836311332709170907560048226749595446313181845500373251363458667479606846109365898359796553121213839346339129746504805637094565984260699487994554688784876628532020406108609435149023894466446402362300995100618224369871248113863957728628527591642373095459573771587270706612969672519908079444784363280104494649522221837784752086929358317335326004025677772948448637741600199059371945342977388482918185969911510376081845643579357651227873489769990464250624452432509378146001705000130565296200442739794476356127231329878420016127576970905324715144689959107255429583690163932581750888902809948541930765670984626465917172721428395411245409185610174705683621260278163043011060749016147618241124768326617334720500842035058431714388838198866666995350486502801598698165869099479309796710710551411582824774624987483618407203556509059916812904962737570456327670498322092497869371171859922469407738097776631928223475333927727872183030087357782965281434971315819205283637197137909676845589361904939586130590284007810557493900856500825655253152035078887073358209
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 97 of the certificate chain of a 2,434-digit prime (184 intermediate primes).

Certified number2,434-digit prime
Certificatedownload
Certificate chainshow step 97 of 184

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009056517689 --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":1100000009056517689},"decimal":true,"detail":2}}'