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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 #1100000009075739883 1,986 digits created 2026-08-11

Value

368167270959027155838960905531833653948513229197438982007518914956808212221733214700595778136305865565943972719765526238620879289169268844859464346416415528785048877098605686315847883426267297839448253911840453854508444316640760372856108772214561574280065287676427290694418995036764153272656260767480145010227349900420654507739859381336049488027915489330477601518212073840980871885745739970094653784512584355740463149957707794295659888991084871276246666108306763602660119723829694615322959232879019576237196215854905035127773339152512567091781954319728923638661408288479592963949232686038876476294393512462794164514067165174597015866608693066240571115542777668037327331282690583608010512829548981087721227120774871384696135889529646928972439532143213107205949723697034660425258048050217802321271235708033796645907091097609657730791615003472503856694191775295474652614823456355061944071988379889448484553542689965629742123511235174148622369683375120064367000170718148355268182168038863511419899382905176514490111080595776235629053332875600313699744688301541361031540132336275753448456336065974651016126727461833383508277980260195742636936568571909959350248943954306455657103440526371593454039167084407718898156509064049530311712910408619651096936601498963319930822253043873505210899046322712379728827355225462583854982258630878414733632614599136667775593268508437657470090143365325454780661960490770793634284936036717239559796368712733933618748776957057222112777936174625672536745117640172128821520097897020886230078460714014297092888975144200458339498431048527997526918295095258129538768782690948751029927164595438477358752451153639231932998129503851814144597534790127017255850774863398642052642260885530633037975582852339938538839885301244855627826097153176046214204007175233642606136328891434920229249207883650668368951783082585381727141507527167300660265747661148360960966576519371362611527516350155490242900554905277342127510099161482433961240802547668237657875644288603692549716799
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 2,131-digit prime (159 intermediate primes).

Certified number2,131-digit prime
Certificatedownload
Certificate chainshow step 13 of 159

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075739883 --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":1100000009075739883},"decimal":true,"detail":2}}'