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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 #1100000009083570828 1,122 digits created 2026-08-14

Value

983429746242240328140857277765277698900094411256991906984121770363616026356342095148182738653928380323681146496742448803960953182277643749136231263689114208533614278139287722310419108456711271386615251726550419101116778081883035774044199359230618930416265007160105368197654875232551631012012163157690370934617109446396275401938521020264932963719019394565111681476046099823428523271773153239792991958512639334008109859138612173656204517045068955157158769726118684932706660180889593522313218880510588896635515097516179214029079809194418669320071071385347435925885723615049264589424742131898875368477734940927791657408974711942670410372345511608689841875930416326120059975058826683551970458112795237363072152783256604285403332373121293443424186469433353769051288828598518652729743992138670266162468283420323347683203386910422711163097059372195165196090350748946294578414694795666453977733664225528656295677156908240401083586190948529170393968384612926779037216475170368978686761544641097092207900601364922152179462779169274778517645270352096181400938474702992388670530010834414231874631173705273183945128099373920106908017739
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 1,891-digit prime (153 intermediate primes).

Certified number1,891-digit prime
Certificatedownload
Certificate chainshow step 63 of 153

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009083570828 --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":1100000009083570828},"decimal":true,"detail":2}}'