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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 #1100000004951979471 1,211 digits created 2023-10-26

Value

21092012465842872701670996954664953140157419609650427570971492622428055044549567717288109474003807326519382618465746507502046940954541314590811252887244739368292615898234335415796763662820626465271750300270481852102741237923317800614195211511159519342926724618773277923969490080085027701989393969234464972021986130638375068508256522568405802299831254319899398091796758515149687133198370437279479008653106005852308086996901658306771515209671391198332888649859661969420646524582148763396453628791237710362081859365509190399185009244086587915489970855111278698677840540797479781851824523570126420702385712625975875904967744637043563064633548999104620093122124309677559827589830715540037988590891267648320054291642244865684924887244026667821497785658715357384332913670764371689770921409944872930934818150471641156437360029977510054734624122998973709842427549906702749363415580390058493077494818302101113226042175612762404087170613128344020198502211053356274656654998214239790323941675138635492326674575343790851315436536470162789824344713582758969254067250482285779162110689595756170567847571799558914711062821504960263457705375109215626586429695393837819029185927797256626804997100956614556669296776523603336846929
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 32 of the certificate chain of a 1,478-digit prime (206 intermediate primes).

Certified number1,478-digit prime
Certificatedownload
Certificate chainshow step 32 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004951979471 --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":1100000004951979471},"decimal":true,"detail":2}}'