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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 #1100000009123519751 2,620 digits created 2026-08-31

Value

2632557391963769877674705823613609941702223566428741353908527650615658474646328322728221236016203209492596402711591236109388621686687600796921241348541119108000746200597512248795251027745466663440455309940805693174393888971716501292431111827036512011148647999733411954854304333264035853467020334430680874874927717956986624190152767830557383320084415579318995507493458804333452883601084409171100774211914859747925385196467616107173107897690975874160759681610543248650166367458832623573431360122584901348535477593611486656432474680247746916840536796407660362127422505149060565186569098145785427980715749401104835204666455618908668299902803071565634241945029947469207471247166402027221107478352161959109287543254559556726244569802927825232454124068114276065160934061460818553830787925417881705386108781819577964827979472257434114638085676495405457807439649998381929266550765444971801129085940014447196669467540740434561577167798057562371093322882928187170356449890237358669846983997341575722222990187502184656514715971973156326442173122451749795641518885034893551544680193081579981377804475845872171685709728511212949994897603017647353151664664288746301195599014493363128509735072109409857393525443507481328639282610568425722938892511870286733476002782313065731141428128439847904529993394351014168689448070452262181430753901068169865531325559865735239707869565280819679627367795210688475682884962073655840031234978348470635848693839385740612182686153716438445075202458305557294871387277516305977065651164481144713954583873556473069618355835938801896234131121597866978223501859548683258335027585153439746387595909478047691532578151834907272939662715387725133576616355320976650390601446308000632550706915877308529046344726530749016421137510647031885067244341631371416525798166282615118049618456244379990024818324192426011220321872729741894509119827545958413923276133724143685203592635807858021969320561725527705808529337830479991261814266497270074933385974207562139463790150015599282916625810089176332085384009538678953027301123821697742993392384256596390117023329978630012555584470752093404893354278173798276968400415647262310396549140780028797571858537820843972892192541062548001063587698003376955997852829140172711787511148939410566202411849665777195587086912130429587451815851545979364415134090890813790245353385978919963207682354126735895286052344516355420905579175179569486836918135857678475586048511290914416750380825520691992958129131833655546704965000011021995394800874522546326474671988688406788146009831839081004046333788304033099906528254541702319715768735474350969851187673023640190351380642643454749000237394811
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 3,062-digit prime (314 intermediate primes).

Certified number3,062-digit prime
Certificatedownload
Certificate chainshow step 42 of 314

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123519751 --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":1100000009123519751},"decimal":true,"detail":2}}'