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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 #1100000004876397443 2,138 digits created 2023-10-25

Value

21087179892074771895541345160699286366374474916291019243147378171737197972259635663753682996048709774268209771258242996594702077017235234586725216505134757121526161835345269506959250672006417681169679605672133833363578079248206255581685498006778917888108607489120422262882403776296657782436386138962934401625604679364392324017693448907851966420297656210078614347875101856053749222604546329482052552181330120131177960605766738148535361685241459202069845018487127082258309425697799239408319634619924215121177377888860057965809271306201459925861357864662985282013883488125922569026293344127837082453734741225588674000563461220477784435399704935688776329104653885122038982900237831461768634864801599359068909548346254613350392934829252281558857151333056709326179632271292562148656862484534491164963135321388225453109236786260111368178187729324012420970470961498948066218053449130632311730320381554408798645061164654017155465570504607269571254016957327431711862996392330832567774620964108491784232927478187537747422119342724885685237664604613057799225545944610181784460935123532252250319952530852121073033282538498337756289824419220768940020152007990174035878380598851055476828017966332155127833940203260685010901829190260309055786366513143076430340627486051777261696810732438425068266998469886973277567929133688336811591829915780838445117863578928359078064563556962821588635291652154063708960842402039988874627430028051708208432565289601808843014144703465748018189023854418971258251955030448366791608990752403233065754379234585564263196718910791382839704496199153816992278946869460950906160766367604969475078302157926596148841678966083349719489432988361573188119275405485843727002670618699193483562209473499694626230010223737006029846387115864789539812520367832256371787092659482075573915472605136245417376672710993259723725725875683744938148164410147199166118198282283364635469438591006967979953450981100226380564942061548709132080395489173576949132776043983941287585098335669928296989829745489020685278680146109115383051737660738876327346044681785915252893927177394562807615850644208207006149057880644264929595085882210228145526290712600993
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 37 of the certificate chain of a 2,480-digit prime (276 intermediate primes).

Certified number2,480-digit prime
Certificatedownload
Certificate chainshow step 37 of 276

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004876397443 --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":1100000004876397443},"decimal":true,"detail":2}}'