Anonymous user
Talk:Rare numbers: Difference between revisions
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→21+ digit rare numbers: added a comment about e-mailing Shyam Sunder Gupta concerning a list on his website.
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m (→21+ digit rare numbers: added a comment about e-mailing Shyam Sunder Gupta concerning a list on his website.) |
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::I agree the 8,3 combo should be added for 21+ digits computation. For the task as defined, (5th to 8th number), it's not needed. But for going beyond the table on Shyam Sunder Gupta's webpage, one really needs to consider that combination.
::::: I e-mailed Shyam Sunder Gupta and he said he'd update his webpage. He said that he figured nobody would compute ''rare'' numbers that high, so he didn't bother to enter the updated list before. He also mentioned that he had found a ''rare'' number ending in the decimal digit '''3'''. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 07:26, 12 January 2020 (UTC)
::I see this BigInteger conversion attempt as a means of reaching a few 21 digit numbers (which it did) and a means to reveal any shortcomings in the existing ulong algorithm which don't translate well to the BigInteger version (which it also did, I guess). If only it wasn't so impractically slow. If I could get it an order of magnitude faster, it would easier to persue this further. Creating a multi-tasking version would probably only go 2 to 4 times faster.--[[User:Enter your username|Enter your username]] ([[User talk:Enter your username|talk]]) 06:57, 24 October 2019 (UTC)
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