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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 #1100000009078839788 1,616 digits created 2026-08-12

Value

79861487977990007781974147821091013456116308732014437365912910086922720614054271514885205114405045317317091098077351320117360059718082270258534629481772617175804989548547727952177874664580953112582764481188552604444216375433393192335878479990813101983501552222736735497959593672395023733258540859985832034118785782953804241361562909935171534572618406095214304933411926105931630240325865746130363393422132048487600306727880309275186780202694022286149746804537641174297511370959828708367326015556349480676702494372320323473471698146641795030559067041088659001213231479712628603218834756877170423901070651516360404551713250834827714504099405267893590398872742419984621891140005161218088648994061794292744006151988336875230067544627099759892063923196552289954725887798032843628531989873829119188139490967338882611584772574622940098856150569934104464967169095992799485368101893952140932160352620658372825452265701892262475797148299458361841839988902182573925603568423168508912119378322429250748112034288871492140035012207929385717669127213805809786948546561649286320464813533843357016763915908036344659105759151788377016606083579631811053859517749935206832572384583528038165960957031363519714480171384436527605819053351179310079238405975695660548846902351840099643479886349832453631663910819241923410770266770044700824227180168787264722715568359353138540953391634882698234803723439090419374030067026074919325417183400811300472315236466742082705051355744393798008034065388366221830446004417056333195056648478256235467624459116597733545316131543349486782806335235513077412548621300274220334057238274521953081542761466910051
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 19 of the certificate chain of a 1,840-digit prime (149 intermediate primes).

Certified number1,840-digit prime
Certificatedownload
Certificate chainshow step 19 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078839788 --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":1100000009078839788},"decimal":true,"detail":2}}'