P · Proven 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.
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Term #1 of the Home prime · Base 2 sequence of
2426
Term #1 of the Home prime · Base 3 sequence of
714
Term #1 of the Inverse home prime · Base 2 sequence of
4303
Term #1 of the Inverse home prime · Base 4 sequence of
4303
Term #1 of the Home prime · Base 13 sequence of
250
Term #1 of the Home prime · Base 20 sequence of
1417
Term #2 of the Home prime · Base 26 sequence of
3295
Term #1 of the Home prime · Base 27 sequence of
833
Term #1 of the Home prime · Base 30 sequence of
4045
Term #1 of the Home prime · Base 32 sequence of
725
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
4518
Term #1 of the Inverse home prime · Base 13 sequence of
775
Term #1 of the Inverse home prime · Base 14 sequence of
1137
Term #1 of the Inverse home prime · Base 16 sequence of
4303
Term #1 of the Inverse home prime · Base 22 sequence of
1687
Term #1 of the Conway climb · Base 2 sequence of
2288
Term #2 of the Conway climb · Base 3 sequence of
549
Term #2 of the Conway climb · Base 7 sequence of
4207
Term #1 of the Conway climb · Base 20 sequence of
1417
Term #2 of the Conway climb · Base 26 sequence of
3295
Term #1 of the Conway climb · Base 30 sequence of
4045
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
2824
Term #1 of the Distinct-prime home prime · Base 2 sequence of
2426
Term #1 of the Distinct-prime home prime · Base 3 sequence of
714
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
4303
Term #1 of the Distinct-prime home prime, descending · Base 16 sequence of
4303
Term #1 of the Second-class home prime · Base 2 sequence of
4852
Term #1 of the Second-class home prime · Base 3 sequence of
1428
Term #4 of the Mid-divisor concatenation · Base 2 sequence of
578
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '5309' --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":"5309"},"decimal":false,"detail":2}}'