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
778
Term #1 of the Home prime · Base 6 sequence of
889
Term #1 of the Home prime · Base 8 sequence of
309
Term #1 of the Home prime · Base 9 sequence of
76
Term #1 of the Inverse home prime · Base 2 sequence of
1227
Term #1 of the Inverse home prime · Base 4 sequence of
1227
Term #2 of the Home prime · Base 18 sequence of
25
Term #1 of the Home prime · Base 24 sequence of
974
Term #1 of the Home prime · Base 25 sequence of
778
Term #1 of the Home prime · Base 27 sequence of
362
Term #1 of the Home prime · Base 28 sequence of
142
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
1242
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
1240
Term #1 of the Conway climb · Base 5 sequence of
778
Term #1 of the Conway climb · Base 6 sequence of
889
Term #1 of the Conway climb · Base 8 sequence of
309
Term #1 of the Conway climb · Base 9 sequence of
76
Term #1 of the Conway climb · Base 18 sequence of
95
Term #1 of the Conway climb · Base 24 sequence of
974
Term #1 of the Conway climb · Base 25 sequence of
778
Term #1 of the Conway climb · Base 27 sequence of
362
Term #2 of the Conway climb · Base 28 sequence of
25
Term #3 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
300
Term #1 of the Distinct-prime home prime · Base 8 sequence of
309
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
1227
Term #1 of the Second-class home prime · Base 8 sequence of
618
Term #3 of the Mid-divisor concatenation · Base 2 sequence of
328
Term #2 of the Mid-divisor concatenation · Base 3 sequence of
429
Term #2 of the Mid-divisor concatenation · Base 8 sequence of
212
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
618
Is factor of
From the command linefdb · curl
fdb
fdb number '1639' --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":"1639"},"decimal":false,"detail":2}}'