factordbrpc · fdb
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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 #1100000009074873998 2,375 digits created 2026-08-11

Value

28121066600650544404463259065298539809331419720487858946579056762460818670024534902874182733291261973364189998365017163576783623933567667881726161964445143509990047239515866931551635995149956264482715320568823657325362168273453813236819615723162809867480682317615493674051327058603491124186565964731546575817238726016576091948787863633489464020276389545894979278679802082061769717948947511905759571841659500900399442282882373730028088756485152162222175718332206041347916843385614646121740917901109783195107235429845220834876676195668969529364406503737517905648293579796182914757773624102720987874690324497383461452789732212209342605920643922873045310085216874719611045599649575127175843017499171123684520724361102400109051574921699729621997054634348204654875295846603084810525875526666759130163897957863321488999176802924121136183114825439825719143642680156518642588905831765199762147920685618852404816535330984438210800494727707238547343972075837188214780053671083565079991383694047264312129504918227377151749956749827530395950529031839992098512591880201415443045935742480456277731255425731750876994510098794258766725369890845681519407763375431422844969216410772649030339445769350042930735716970582143259844156983903810073115532884640461192197391376466941342433602359956007565469819876626466456826004635438327632328277543320797163381018614032785203510272434547423248049002540680270162158885793195566953246743645609809592535848907889820729990986646814666315881618578250968191812585221802003537570224755100685777436637610785273454659467770325695052438858048809812338834903191867890371487423138234909323632407484674195206838018214597708697210184467090076024587514484166497829512513393735122233780454519278641345525556151501284965727868793249322864765149368780132063770917517318169091681844721441620774350546555404452752306903103253450583741271599345802057895551904982014024978037070671769157110718536298159080818805181224810505161631494681106713546582405557376181984622639656508113769442472753738617034029352250966938434876405235967319660991464121823994313724593799202195512800126630158907360748707728522922802927555111767117255203271091265066108818892901321855516168982570900053025780611235788302873053091442708589266465823730480762720085455130021895732572038288362012419637709102762102511282976793804789961305089094700122664971753853368259647453650949743086032146085031804127
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 2,655-digit prime (194 intermediate primes).

Certified number2,655-digit prime
Certificatedownload
Certificate chainshow step 27 of 194

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009074873998 --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":1100000009074873998},"decimal":true,"detail":2}}'