FF · Fully factored
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 #1 of the Home prime · Base 5 sequence of
1774
Term #1 of the Home prime · Base 10 sequence of
959
Term #1 of the Inverse home prime · Base 5 sequence of
2854
Term #1 of the Inverse home prime · Base 10 sequence of
2627
Term #1 of the Home prime · Base 20 sequence of
5729
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
4960
Term #1 of the Inverse home prime · Base 14 sequence of
5599
Term #1 of the Inverse home prime · Base 23 sequence of
1001
Term #1 of the Conway climb · Base 5 sequence of
1774
Term #1 of the Conway climb · Base 10 sequence of
959
Term #1 of the Conway climb · Base 20 sequence of
5729
Term #1 of the Distinct-prime home prime · Base 10 sequence of
959
Term #1 of the Distinct-prime home prime, descending · Base 10 sequence of
2627
Term #1 of the Second-class home prime · Base 10 sequence of
1918
Term #3 of the Mid-divisor concatenation · Base 2 sequence of
3107
Term #3 of the Mid-divisor concatenation · Base 10 sequence of
155
Is factor of
From the command linefdb · curl
fdb
fdb number '7137' --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":"7137"},"decimal":false,"detail":2}}'