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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 #1100000008677877487 1,451 digits created 2026-03-11

Value

26346164132176751563226326401618963761028706619788815177119953383871965375788204833827591649553955464756136979732858308716506591023368023744738142091672791825719416556060029461967769607474574661930466960262764487595302473687610833618431688798567117806425532927060574746394979962878259803029386514508763167372494199523450182531037525385970731365446109427047984193481014842550626182153487973569403156228421876991889431551598533274355994728271824068175116765806210812845257464647961945679298508044479215630391279182562822751520669994944936626669172376959050509080383834403289793111750730107945564993680214110505825849699876968954916525631857871447234016949561902944964182539727059988426194943889011740726408278067995637808355834559329183975954952121267870223681032054828987663493205354079868466854158477555390931097634007544631228198421956109135929516591451296342641675919768544009984899140629623037805459359771245882173054344150972204306966665991067394293565502916600450820812429064811724927727459052269186413948637920301666986808766318177017982143023699319198996979468571654330847793384605066906514481847930818358412013888558596970427822643453554353312678270565960704266457234290201728483747488994115113052415801033688981539524069613321980579942477588572313020076041615231080765129500590265444265445386455507206237916217330525538988922275769396679595594905949843344753288054920847717689024715885333051650074712507474132764442113316820106433194206263731
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 1,740-digit prime (182 intermediate primes).

Certified number1,740-digit prime
Certificatedownload
Certificate chainshow step 28 of 182

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008677877487 --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":1100000008677877487},"decimal":true,"detail":2}}'