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 #2 of the Home prime · Base 5 sequence of
166
Term #2 of the Inverse home prime · Base 2 sequence of
901
Term #1 of the Inverse home prime · Base 4 sequence of
1713
Term #1 of the Inverse home prime · Base 5 sequence of
914
Term #1 of the Home prime · Base 14 sequence of
1441
Term #3 of the Home prime · Base 18 sequence of
26
Term #1 of the Home prime · Base 27 sequence of
171
Term #1 of the Home prime · Base 28 sequence of
1438
Term #1 of the Home prime · Base 30 sequence of
974
Term #1 of the Home prime · Base 32 sequence of
478
Term #1 of the Home prime · Base 33 sequence of
218
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
1224
Term #1 of the Inverse home prime · Base 14 sequence of
815
Term #1 of the Conway climb · Base 5 sequence of
999
Term #1 of the Conway climb · Base 14 sequence of
1441
Term #1 of the Conway climb · Base 18 sequence of
133
Term #1 of the Conway climb · Base 27 sequence of
513
Term #1 of the Conway climb · Base 28 sequence of
1438
Term #1 of the Conway climb · Base 30 sequence of
974
Term #1 of the Conway climb · Base 32 sequence of
478
Term #1 of the Conway climb · Base 33 sequence of
218
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
1713
Term #2 of the Distinct-prime home prime, descending · Base 2 sequence of
901
Term #6 of the Mid-divisor concatenation · Base 2 sequence of
264
Term #6 of the Mid-divisor concatenation · Base 8 sequence of
33
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
1912
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '2287' --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":"2287"},"decimal":false,"detail":2}}'