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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 #1100000009071886300 2,628 digits created 2026-08-10

Value

331455701770259671353797943868778817391141976758694031576851731971597408774878696654780098495717273538041646634366806474791322893898395868014056890308409938033151026131283847453765489475222757440255565440910388420802680694599707924694082926359827788597518940950086411901641783131119531455999846611809527877140539757436462839432671469182758071704385372813696929207343495325183084551906249363525944376255422230325394324120788399444144137497534911333807670340464625843330150001453250154844202945148123708968396657333160954948528477039026596482187941170858029932808799613335333881654382931554424898468199478320413528680130406568192829489183038668296772074414504615232617735352342259593521677747649401934803460594760519537332998729635958307255142702616576544204678233668258601650824647704524703612166689960367731589668794539574707129081119199359700872679095033615130285482273724919692855045621448291673613418382445560135167382212482509837828318125032966208026202379990302981978300951708186555205755734605443624815548584782226462471498176930489771848304070715570631748016118496527461894939031161221346450649298102418179842441845249494302255694396991372932614789901148232935760680000331192378495184355635978314248126591124127882350836601470786053515923383261892392984060532692879544117862449974726438647662639082036130666829528666873521036706815264503354785500287698834713915752417411833410123973127429595617692225346911102562336409158443980341633125380899708182759223731286929784823849695704257849385471246982280335454655562806053775597636692433799288544308436085523993814166160826820368539784318857408827541574687454942022420404593408903475940066367851259917152209200073352891520726487298579038302507644894767147579221171894549863225440962328014316323641147291040954209210879766309351600465482484716507579337011355830944730582929581044150404544708606819711602423014807521648914188099775850661016238032774674561340549442742191656607555287484145019203493617823095400934324044195943440779346235948472965334704291653629590893054125720564101126626914336680127254337950940498964483918156705784669985762032247581990328409349342794240596570466999709179428598632603474720661943238542959203790264618042120627689650593807285818621389796979638676958236203595043474960375706900646817160229522511759077804941478681016039033511008183935374485159730502524631055577023322008622007418405631628452821087415043132005236918266381495230981930220766021807268387934946540176174831149190712119262053678980508881570544124457414990591560425692748296661762963542493237995258054033960869969786247000002762704512604432695290442114806350350982849610814480084962481
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 2 of the certificate chain of a 2,645-digit prime (196 intermediate primes).

Certified number2,645-digit prime
Certificatedownload
Certificate chainshow step 2 of 196

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009071886300 --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":1100000009071886300},"decimal":true,"detail":2}}'