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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 #1100000009059913121 1,859 digits created 2026-08-09

Value

56670393099343067369627666823847974885892111075804534151109151956246381129358790673369533684876863808340099910775337968264666877932243983207552897193506688657752815784607909817185039484019069983389510179511605238231658130858749721390534045849685351997361566054914760759433527138282170232675870370230096630513096096339018479181165140564184467697727872052065926881628267005215533906053785990058865863274986615101264264109861904974030132509763802911836469381165390247576701298676380284750618863142528254364573964980760062904518631526927080204579093227264700711097142441452204583597116207902594253112387519748049674924912308871638493967397347441635329974717024713759219422349813513158140686613897788960952286052910981952375481542383956275338986952614927976787937190292500875081450378179424407096714730620674856255852293554050131957988215817841484410439568809858458282722303927139808295741121055492324436431754211050363520956189531059569405219032391234801112467314969305109499829664180648237845653537520264043667255088889894422001515318476368138759828854644592338422199179493635851379157789077906125210227332429290340224251428467029061145657722569320967564739178400759853894271958912554545543104031843171530687925323466132997428506003134518517604851836661281923218615717896591082539868576024310537007728677991484044048156667851572517348438412366770195780197696402636491626314682436190861724143771008038754052410064573537342122851935024789509769663574217962652570374928014283411197463591612269834600464554761489100006945704339531236142198677680840417526765914371290624558436875520154848253026076571745726159017456000294370611444738848581822649112173225980744947704488035145286459896481219585789582001163072749055236998230101123076268521730714697957746234687129266691518792123477922611861691589248736926351373762593072906365481910641304273439000188584758457051814499
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 41 of the certificate chain of a 2,367-digit prime (174 intermediate primes).

Certified number2,367-digit prime
Certificatedownload
Certificate chainshow step 41 of 174

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009059913121 --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":1100000009059913121},"decimal":true,"detail":2}}'