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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 #1100000009057950852 1,613 digits created 2026-08-08

Value

87266270828995125768784542924496416904088317074545657000744748933969168978715182540228571400665234238038086095302558081046329504243635793193750424927446630997880322073052294772550987482808623585393780626518771971747714330980542486861075237108249247014168408722339931424337203865569652701281384354630963812173884416956195603974204616649582908506182434949521729750421207622615326950840994416303702672030370721520626460044081278626370388124735914794870775132326406236718345918077878192113483377944106218953876040861206459615174058488601141426759470892670497415847120743736624324670419888156825603137883644948442787661467287418977529306352184884420163049407362482181921751800374007177302583103557419275350296468512878904135923929567040436741344483757304788012001801691106659155514544950016720381796672601749179870544072505594670277194928172709589319366723978556082062741409831633584260006744029823348411709150756260489813156393895369258145691421001000961490455547266719446159071597920365771581187594297293918864970809385769073531232068282144996478237679074505532796369195602736971439501864398178754288912209946783351229707068514928855720381369287254340756672498438265428196794366740379304420359256101372154256737595240015312271370483296277323192334112048056096429249152459700158112021484434619102250972881481449014093771027000945778737164115684859160789370834292490163187150503487261665924340455258979608418269844194911432383317861315134027610741308582270342886665492272752100356552657274190257309306582578242493078399141228903362729992876093127219298782520539801668617412376167872898626296222823959611043873529550181
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 2,254-digit prime (178 intermediate primes).

Certified number2,254-digit prime
Certificatedownload
Certificate chainshow step 54 of 178

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057950852 --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":1100000009057950852},"decimal":true,"detail":2}}'