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 #2 of the Home prime · Base 2 sequence of
412
Term #2 of the Home prime · Base 7 sequence of
478
Term #1 of the Home prime · Base 8 sequence of
273
Term #1 of the Home prime · Base 10 sequence of
1843
Term #1 of the Inverse home prime · Base 3 sequence of
584
Term #1 of the Inverse home prime · Base 7 sequence of
250
Term #1 of the Inverse home prime · Base 8 sequence of
403
Term #3 of the Inverse home prime · Base 10 sequence of
287
Term #1 of the Home prime · Base 23 sequence of
969
Term #1 of the Home prime · Base 24 sequence of
807
Term #1 of the Home prime · Base 30 sequence of
394
Term #1 of the Home prime · Base 31 sequence of
52
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
1986
Term #2 of the Inverse home prime · Base 24 sequence of
119
Term #2 of the Conway climb · Base 2 sequence of
412
Term #1 of the Conway climb · Base 8 sequence of
273
Term #1 of the Conway climb · Base 10 sequence of
1843
Term #1 of the Conway climb · Base 23 sequence of
969
Term #1 of the Conway climb · Base 24 sequence of
807
Term #1 of the Conway climb · Base 30 sequence of
394
Term #1 of the Conway climb · Base 31 sequence of
52
Term #2 of the Distinct-prime home prime · Base 2 sequence of
718
Term #1 of the Distinct-prime home prime · Base 8 sequence of
273
Term #1 of the Distinct-prime home prime · Base 10 sequence of
1843
Term #1 of the Distinct-prime home prime, descending · Base 8 sequence of
403
Term #3 of the Distinct-prime home prime, descending · Base 10 sequence of
287
Term #1 of the Second-class home prime · Base 8 sequence of
546
Term #2 of the Second-class home prime · Base 10 sequence of
1450
Term #2 of the Mid-divisor concatenation · Base 2 sequence of
718
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
1272
Term #3 of the Mid-divisor concatenation · Base 8 sequence of
154
Term #2 of the Mid-divisor concatenation · Base 10 sequence of
774
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '1997' --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":"1997"},"decimal":false,"detail":2}}'