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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 #1100000008676650251 2,208 digits created 2026-03-10

Value

383770336743656064719489596452114835093453346449617056756324719242620953519562739982641646577592232791812579278845599744117425809255561564104550379054899926118091983448900123502597718121529666771454025188574248513716504974328034906589557794189227419464187200378876298453575337368279056617798165844788550902966058351196705660411949691473869052867490043636807265866212995847125402779575919432595757594706870227586150705598255181916556562238642001710054248077937990512259371323086342441915930128732862511037309530503438144995057614656293779281601228450203118363581184739700798564323726883580861212360834408422711042201697821612033430501085954200950030900832375851712847118722744458167414417708437339952340422310150824759890850412780139931744582252020197423492127565036416151618669576862671604479009289736368034791797874951679151172188743461574670379089635203885212783743714746136162162454163002592346110813459731774157176083371322539072023042132184495583486882965228670033907453389444575846826959145661974753525615290805130934347508657807041093738559436084863681719324251375876889751646177314565105635211027379866160734704380396636386379418735286401536395006552884213016661758014152880721133351094285054063654233955616625039715965445759822990006319627909071386472113905375154826869266126704480787582665068646037807313166737126529031025568105329208410600128134450902353210217465037447441506580396477189116399476328071473995269962547012370086484458864726346259019932138516601532723628626850156100576012858590777297255081612511499634037472699827708051131493407176041391477034197238494415052374370876784816142378041678713981572601691154520999998479145392369943581078885145830689102728540385513864797498079427177176374338996832702427340711237031204877962795553785975846338447673116341087446873903378427251999539003195361368586867363208150604924994184121436440957903787287379132700257626229951066645945133226440705535679525964368793915123435200345125645105214304252985761042937173303535677375610330459949187192459273502221700710171016539640047470162765422777025939310414808713326576021784629774936806215333611731753222775088410121428201282263443010050912772740472124864970315855486041592117122722604615410865752562619
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 58 of the certificate chain of a 2,930-digit prime (225 intermediate primes).

Certified number2,930-digit prime
Certificatedownload
Certificate chainshow step 58 of 225

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676650251 --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":1100000008676650251},"decimal":true,"detail":2}}'