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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 #1100000009061637943 1,724 digits created 2026-08-09

Value

21799017075490334811686199474280844063802281476321668025363911541078434484907172124126197638758271637550843513413044285736879926446435416215822008879158466402207721804343197007502318775820675184581144393429612869326184049707487988800352252721288693835702068691418431984586859031157164766300132348922435073300748175408849168805886990604374997158167505970925276681852444963260039406626145852867982949185733284236208985977912073391361245770139660152725600672925466205354619175596549315791712753348283768783161591484318834816115746070558125379077717318137315724499151140060889881913172256700294689693765545654368586350759331256550829970429257409352102352775320028573148388861208773174016152264181654775379201876016724348463369538634431752494668058766407621541256035222351449443388740946806466048217819569587153439563438563233854275418870960527872151115368408607506703840370636899380663553239220035690575727721831547115864407349300791998263664632823776512745738883707881729624161952993246729914245382585486036664574782370719520198434381511107513140500290803072068871929207438298713383078215238274512761125992628309255611782850421212690283727675264463014575322627251705603163849151984439254010043458819798881942037019105717761833880515991764186888483855658700075245651993001946622586502676108447197630638465589750502350227978171929970640910772747992209282657539862098707814522743656084695326297122511707712823385984057852121823499490641852640665664203317728007578259064267515676139716858300340086001781958196970933234636333627893486783822789013350610546484059666434957510558075545526574033409835554619645903309260649090901385121235000411919998447595991317920804849496067753407199891647807351925752052942277075070716689923193482519
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 53 of the certificate chain of a 2,373-digit prime (183 intermediate primes).

Certified number2,373-digit prime
Certificatedownload
Certificate chainshow step 53 of 183

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009061637943 --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":1100000009061637943},"decimal":true,"detail":2}}'