Talk:Untouchable numbers: Difference between revisions
→Number of untouchable numbers up to 1 million: More comments.
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: Yup, found that too, and wrote this before I saw your post: The factors of 19175641 aka 29*29*151*151 are {1,29,151,841,4379,22801,126991,661229}, aka {1,29,151,29*29,29*151,151*151,29*29*151,29*151*151}, which sum to 816422, in case that helps. Interestingly the "naughty boy" is a product of so few primes, and the original above, 14641 is 11*11*11*11. --[[User:Petelomax|Pete Lomax]] ([[User talk:Petelomax|talk]]) 11:50, 11 February 2021 (UTC)
:: Without something reliable to check against, I think that 1 million is probably as far as we can practically go. We could, of course, incrementally increase the sieve factor for higher limits until we ''appear'' to get a stable count but, judging by what it said in the Julia entry, there may still be the possibility of some outlier spoiling the party! --[[User:PureFox|PureFox]] ([[User talk:PureFox|talk]]) 14:23, 11 February 2021 (UTC)
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