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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 #1100000009103249869 1,961 digits created 2026-08-23

Value

65963724150143955936205627672033676660990663724199179707826645264239803355240996854732045859889618442782015134373217691799605022084103208839036470119005386287870222434842788759831827174999598230983836958216564125655264317649563435529186839264798505570074690324612649138551712088762140523103518450147209565493470484095386692891149739088502159533441422038009114036791414984101494855979753817601112710719899489100408783395238825975329185275200089716039658368436304326568238711200094352885138114504943480704891075643083226532048147800540904481234273820442611610604337957324626073957384388529323473871856531443711518807406275655150215914807388738377562038965921060831079042359978969166880962362428890297669777309344170485468889849721157610351671109831290375569310265197175935918158489559140841840745944151796052497945213508647921800933783743983845772447056787341719707921978617469644358130358414409243200220412819472633121028392751328339938493775805785610856043871956110881015279511479317211872324598490809332988534974939512958213259143914803277341449895398245395063570883041106491239620222589040440557155263121079376282816283339186949829921878003972966148384620651041254331590625192829244399994155003965792928577907941129856312177001832563397886011929707042546085043496871392142497088759172281626322428522139527757208827385979054731434263516163169645551097581968754124439995958832413443868130477929633890206967929723623336477701274301685332671098068358986900985368997678548313592157172910942200819178491440207821335319999366156705347250473818502086353657192629361630812497981388676143788554626747585141173713552697121141648170744450660452848310169098737740561141354021025115583338129304277812348466041660394169697870280125078535222921206637229226567388416928840965553502974426974826041814398385765805351923435477187873756401963097192346858095476817569766036924961222286364277328884711384277077708403221474606530274549615939568522346461921318343095773947961678683579
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 77 of the certificate chain of a 2,987-digit prime (220 intermediate primes).

Certified number2,987-digit prime
Certificatedownload
Certificate chainshow step 77 of 220

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009103249869 --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":1100000009103249869},"decimal":true,"detail":2}}'