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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 #1100000009091972496 1,748 digits created 2026-08-18

Value

39124000997075361223077851530747891106139107922318044899880889703750427108014799371500874288190161646562125024211914413480847494608726398908018041349029155302949192254340516518334273372380301486792085702089122582806383972779115332326945896322868954558104283758121523434290457642984392399036791003915976328232014932756122938749759345905804176849496883999548179525406331310712934349490805296934209172348349702007100582505420304955309299637518787237285336008426480282242581041564631969806739222136764657963699969414419491107510823378335334057509601249000922165801593090816060283518782895438214109339755801350652056819250499006854830654959887814722975601216779914355057448518809399989369242612824515985609495652217009879565937697273835217314249159861682454136932060776312521299584208512314354314672180736237201096942264424276234480863732758521584451709468438895495704918456817732327794108731266142881059239378375938057999310481618067335029525216979366956691369034507095251189536660387967593122613624781044284759821441653707731586162397847441911903130213868803736442704551130743257800876309772223063629457924715999861635650435478677089935151148726093192389244568735616008683025176333978453727067798338871707310272724328290795845565109346687599174543234582603114233115898560162921616893295608072012297842495684064147369966251278752810065808085659726631899071081139418473566517265273637972524246668327878034621780583525984678074084360055028116173776729645742761067107534433826643756111103716145045445385648870211645605710267158179986157520019524589094651152276186781826849260650740342906260320164345378586117749990869435379192385526687495585249615092999167469738375357659900340113647216676705053362471942824417018003865690130168739378754259555984351745871
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 2,091-digit prime (169 intermediate primes).

Certified number2,091-digit prime
Certificatedownload
Certificate chainshow step 30 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091972496 --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":1100000009091972496},"decimal":true,"detail":2}}'