P · Proven prime
Enter a value, an expression, or a term with a variable like 10^n+1 to list a range.
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See the expression syntax & functions reference.
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Term #1 of the Home prime · Base 2 sequence of
933
Term #1 of the Home prime · Base 3 sequence of
778
Term #1 of the Home prime · Base 8 sequence of
933
Term #1 of the Home prime · Base 9 sequence of
778
Term #1 of the Inverse home prime · Base 2 sequence of
1383
Term #2 of the Inverse home prime · Base 3 sequence of
69
Term #1 of the Inverse home prime · Base 4 sequence of
1383
Term #1 of the Inverse home prime · Base 6 sequence of
1535
Term #1 of the Largest prime factor · largest prime² - 2 sequence of
43
Term #2 of the Home prime · Base 18 sequence of
489
Term #1 of the Home prime · Base 27 sequence of
778
Term #1 of the Home prime · Base 30 sequence of
94
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
1610
Term #1 of the Inverse home prime · Base 14 sequence of
1703
Term #1 of the Inverse home prime · Base 30 sequence of
1037
Term #3 of the Conway climb · Base 2 sequence of
208
Term #1 of the Conway climb · Base 3 sequence of
778
Term #1 of the Conway climb · Base 5 sequence of
1552
Term #1 of the Conway climb · Base 8 sequence of
933
Term #1 of the Conway climb · Base 9 sequence of
778
Term #2 of the Conway climb · Base 18 sequence of
489
Term #1 of the Conway climb · Base 27 sequence of
778
Term #2 of the Conway climb · Base 30 sequence of
81
Term #3 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
651
Term #6 of the Distinct-prime home prime · Base 2 sequence of
545
Term #1 of the Distinct-prime home prime · Base 3 sequence of
778
Term #3 of the Distinct-prime home prime · Base 8 sequence of
777
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
1383
Term #2 of the Distinct-prime home prime, descending · Base 3 sequence of
69
Term #2 of the Second-class home prime · Base 2 sequence of
840
Term #1 of the Second-class home prime · Base 3 sequence of
1556
Term #3 of the Second-class home prime · Base 10 sequence of
1188
Term #2 of the Mid-divisor concatenation · Base 2 sequence of
518
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
778
Term #2 of the Mid-divisor concatenation · Base 8 sequence of
518
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
846
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '1847' --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":"1847"},"decimal":false,"detail":2}}'