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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 #1100000004879281572 2,145 digits created 2023-10-25

Value

157726399993573658603025401543512411842276943531858982317025380760970659008321029903021725917632770234477073779298570675816196133808504414595843169102335481092460954245287876248367168554687682203045743473612957961630341014269796915365849696089260558114369516801798487781655946084489309785029864989526666588221468571972461875254207448914319682392365020611501556052960203924845041254319620633180083999211231065931501235297946102073114947711870454173355360011119482666316284402504833861194516828859168545860715482884213106109298668641810709842028759076335473332208882941943666732054727030560471090538616782213035893889966273217095529438093955600006202156645202621520990273640314973845518946179611024379064106027028649574235856251753176356042327576258739791747898354348491155478247994230506072649574126195269230331161167400797030322171469650291041190197146212113486932637795985501676039879751656538038646374663472527175514255210327106965214861555437488908422409648002969689605043715848720365352772628710326233377720464814685854815909898654920313636675805788097690956308818445861498623369932011946121663714314421169124662289127142587575816341293834263803273694574487262711305004990256172526549378674176085975610722525950623510343314760612764823908067803484115626401192139708939594819879439648251096610840590045318466456281902198624853483562505649999655837495998384184321551798785439046841196197156639204443879304326597905625312977090934224330884818516583230683269102032439162504957116525302793720258517334321580265310668534076458549722634373057463019364206212140251264848254059329929583872731268232626229709636686122179899200136252583539833079779450421544740090797249884385389887950236482933165269926738386965676970242398193414419130472010262766178490132079573943122475881515703593470770871860322379235574162568926966499855838846224975802923278273467545583981265603069660325018069344783565977513455146337776792065338291307845048489869098281865956486558024546935037051691529479202731682392940320593868722599964970152659904248296196182385586662730665222644647064529236435822096326739479485277688622545745809877412474761318188709167628215172258975391659
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 2,405-digit prime (313 intermediate primes).

Certified number2,405-digit prime
Certificatedownload
Certificate chainshow step 28 of 313

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004879281572 --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":1100000004879281572},"decimal":true,"detail":2}}'