PRP · Probable prime
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.
Is factor of
Primality
This is a probable prime: it passes probabilistic tests but is not yet proven.
Build an ECPP certificate (for example with Primo) and upload it - it is stored and verified locally, then the number is promoted to proven prime.
Primo input filedownload .in
From the command linefdb · curl
fdb
fdb number '104874017835429691940408923317237280466037804134209713648342208864707323161142123401231774949193622659308320692899281908015944193123574893775576465367043639555697628461447557608110678532623031132764297212283775932153684672490533492016410186622519443582579233253131806758848199687848506153755165406143963933654458482249623784063315486482314057407824453354470498826724682217859498836212004959757277152247433948543027124656053245926947006707691032940532122485828089339214054000887414110938711153197118512641994764447292013336458789195926965175619504146352027920397359833059217694659296500330558628232728947441810435772109823438073780267458659701210480248824371827499614252337005432734563609373244763689179372214508990788834301595796669030379753303753259276466880641722667' --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"expr":"104874017835429691940408923317237280466037804134209713648342208864707323161142123401231774949193622659308320692899281908015944193123574893775576465367043639555697628461447557608110678532623031132764297212283775932153684672490533492016410186622519443582579233253131806758848199687848506153755165406143963933654458482249623784063315486482314057407824453354470498826724682217859498836212004959757277152247433948543027124656053245926947006707691032940532122485828089339214054000887414110938711153197118512641994764447292013336458789195926965175619504146352027920397359833059217694659296500330558628232728947441810435772109823438073780267458659701210480248824371827499614252337005432734563609373244763689179372214508990788834301595796669030379753303753259276466880641722667"},"decimal":false,"detail":2}}'