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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 #1100000008799243370 2,151 digits created 2026-05-10

Value

629208947466879418700239308330452421856007230910574028254420307828825413422211719229334219353821333526942055202358908108890968586787336166330315355815091913301719754508851635978375673346321109791239473029655563035364379843198812752783020676264449623148275322779971320707840379776552803678274681265665951908401927852639958414096826887669957819268148322812974640060181878580121911967638594384342486984347132301677229586925980384806906106128593393514156600774992345269482516143655047575799472283579967920673503098086363733216198915483886204168801522581652650173170371537788674765108245917042737770939708886695716370325279148812709231502388839190906131922800646319600402712906108214605263965438144922503160369566862780673611652960990194949384974057942249958023975490216296155857342973471306172382974210767565322085962260496118011134680861782701915769648223717775103702298896218884597404450980943743099778847948061795768845222891937747707694923469115316053745792009800106538802686821702515404333716321630792690011864554846636185163989460491420920583736314347236186088366689042177111474120182960360130057066408188932734381900452148287669590007980577804347149547246039463542971312105555879022473948288889038252189290071447797034853335002095820576940241527454968182020610685004906581668751176645510957997605339885896718472045952682790316844121977920587096984404430909559153894768155800598570383053154953220797780243513071421032924372798047228244659033352636883978031282839537574950280377230087113147440349244020449700000480610458827976310579080719699107218081984217463447393528339842790031742237000430650120595030399821818084163013552906782651967850380218738010186451345797105060510613702011346056214076106958569081811313715096109198994554778996244283735058167214003539731948247007053380927666112207544858686056210009025022758385799828900164629744634602140374134285579497766358356382817105174424941732461398719475499200494889528433832166430037459473747165999922140144660668285820891117395431846931930261507030209019739733819124100687281907829407402569659209612189668050145091275110526915252491514651389109501043561629504459216953689080236413304039594399292257
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 115 of the certificate chain of a 3,883-digit prime (240 intermediate primes).

Certified number3,883-digit prime
Certificatedownload
Certificate chainshow step 115 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008799243370 --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":1100000008799243370},"decimal":true,"detail":2}}'