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 4 sequence of
667
Term #1 of the Home prime · Base 11 sequence of
2163
Term #2 of the Inverse home prime · Base 2 sequence of
2421
Term #2 of the Inverse home prime · Base 4 sequence of
737
Term #1 of the Inverse home prime · Base 5 sequence of
1773
Term #4 of the Inverse home prime · Base 6 sequence of
319
Term #2 of the Inverse home prime · Base 8 sequence of
2077
Term #1 of the Home prime · Base 12 sequence of
2974
Term #2 of the Home prime · Base 16 sequence of
845
Term #1 of the Home prime · Base 13 sequence of
54
Term #1 of the Home prime · Base 26 sequence of
1477
Term #1 of the Home prime · Base 30 sequence of
2215
Term #1 of the Inverse home prime · Base 13 sequence of
261
Term #1 of the Inverse home prime · Base 19 sequence of
507
Term #2 of the Inverse home prime · Base 36 sequence of
1271
Term #2 of the Conway climb · Base 4 sequence of
667
Term #1 of the Conway climb · Base 6 sequence of
4455
Term #1 of the Conway climb · Base 11 sequence of
2163
Term #1 of the Conway climb · Base 12 sequence of
2974
Term #1 of the Conway climb · Base 13 sequence of
216
Term #1 of the Conway climb · Base 16 sequence of
1501
Term #1 of the Conway climb · Base 26 sequence of
1477
Term #1 of the Conway climb · Base 30 sequence of
2215
Term #5 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
400
Term #1 of the Distinct-prime home prime · Base 16 sequence of
1501
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
4319
Term #2 of the Distinct-prime home prime, descending · Base 8 sequence of
2077
Term #4 of the Second-class home prime · Base 16 sequence of
2242
Term #3 of the Mid-divisor concatenation · Base 2 sequence of
1804
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
1660
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
1501
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '4943' --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":"4943"},"decimal":false,"detail":2}}'