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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 #1100000009057487247 1,090 digits created 2026-08-08

Value

1959399868277434830391778300070406258620806588000272524565865781655286448667787130587496109471985495102093896905679693188247036753257603587248769993571151110934358079565057073598444254820441054901884139295794331631916176632990399625665150053409164038864312389886688309317953483712244046700206308771827986850294665119751512327015410822406860304581544662937541189551938513584735622684763047248146692768033511095382677092494003468606807309384069386457896632097329657696233071273316335175467124623517622064575592625522741234424380809348642064105026467862349480518094932501413076908932764901263464210604530359888001146664336216099021267702192268555355093284077494315313424287427350631881905089720580070781202195518586874639927990403894287609487344126771323372822697099486517801732115625797249745827990548657763777685828843331645780082137322658002825529902920726527260690160709237798076317099581512721437909367020715931259899465779503152491730662062372303629183166240890073093009081030269128808406543782655440335725099679826977960716214471980284190173194956073512708011038980323408857179744122059
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 98 of the certificate chain of a 2,354-digit prime (176 intermediate primes).

Certified number2,354-digit prime
Certificatedownload
Certificate chainshow step 98 of 176

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057487247 --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":1100000009057487247},"decimal":true,"detail":2}}'