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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 #1100000009080780215 1,895 digits created 2026-08-13

Value

17122301374449052010707746069246576287920868622278739268736473528294119019800435307836534059190699075940534999515953787200613995203120971868737220719546427189165242365127820160947594993115030835487630737211943356933339093213397244220258427793243268441743904737841435130158200196004247613084984720151286762460532354528730357430634177476245382548586153562805075804548646847572299680381131098998977530522837885950994692417782578233538068144329722803202539985879892948981895596424632911164704888982350570077208172402237058398938986821379341288426454230892291061060615060704143811897976652910737867570820163238383655485133399331550911388406251330650459418140272540368698747000110061675324135826644372229797441401200213472187321258971986770917874089091174595587929466704316157298594591965941300070804606519381359126013785526370212688371525521164794697645420428183169322040504948029939181435713226784076918371588465344597568370029892637186759044743195776286063784279441072175467677530495959252960540774611637620691640271441884694815904486914984737399535205268244015125083557367680685256661350265740040254444461750940137311971794268234682854749331466500739709198284055170683193265225428092323257326382681001945199367760106931452085408519150191026143832132893290921178031916894887360655468258242065565170367804193728605880771636550662689855747087931250726915229305842955578320521694976583087879246975757499467226849053653551836804106843000314840884707082039144476642663363194140489567822995094162540280544339130964766397199044798965627731486482134952341624035914940745334959575396555680836426950144899521965630387699020981902046502208723706007220307049820629964572890631776974784822374010668551895795096679543344845211596898083355629036644353948164802860439390980684727052144144683911009923210957664574189829208017547646113352206226991462532080135415108138030248361015180424594284045885857545855999659197
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 1,930-digit prime (142 intermediate primes).

Certified number1,930-digit prime
Certificatedownload
Certificate chainshow step 4 of 142

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080780215 --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":1100000009080780215},"decimal":true,"detail":2}}'