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.
↪
Term #1 of the Home prime · Base 2 sequence of
1210
Term #1 of the Home prime · Base 4 sequence of
2215
Term #1 of the Home prime · Base 7 sequence of
1522
Term #1 of the Home prime · Base 10 sequence of
2815
Term #2 of the Inverse home prime · Base 2 sequence of
2419
Term #2 of the Inverse home prime · Base 4 sequence of
2419
Term #1 of the Home prime · Base 12 sequence of
1137
Term #1 of the Home prime · Base 22 sequence of
2629
Term #2 of the Home prime · Base 32 sequence of
70
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
3330
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
5020
Term #1 of the Inverse home prime · Base 12 sequence of
3241
Term #1 of the Inverse home prime · Base 14 sequence of
1985
Term #1 of the Inverse home prime · Base 16 sequence of
3817
Term #1 of the Conway climb · Base 2 sequence of
1772
Term #1 of the Conway climb · Base 4 sequence of
2215
Term #1 of the Conway climb · Base 7 sequence of
1522
Term #1 of the Conway climb · Base 10 sequence of
2815
Term #1 of the Conway climb · Base 12 sequence of
1137
Term #1 of the Conway climb · Base 22 sequence of
2629
Term #1 of the Conway climb · Base 28 sequence of
931
Term #3 of the Conway climb · Base 32 sequence of
64
Term #3 of the Conway climb · Base 33 sequence of
341
Term #1 of the Distinct-prime home prime · Base 10 sequence of
2815
Term #2 of the Distinct-prime home prime, descending · Base 2 sequence of
2419
Term #1 of the Distinct-prime home prime, descending · Base 16 sequence of
3817
Term #1 of the Second-class home prime · Base 2 sequence of
2420
Term #5 of the Second-class home prime · Base 16 sequence of
3208
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
4430
Term #1 of the Mid-divisor concatenation · Base 8 sequence of
4430
Term #2 of the Mid-divisor concatenation · Base 10 sequence of
2210
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '5563' --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":"5563"},"decimal":false,"detail":2}}'