Digital root/Multiplicative digital root: Difference between revisions
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* [https://www.youtube.com/watch?v=Wim9WJeDTHQ What's special about 277777788888899?] - Numberphile video |
* [https://www.youtube.com/watch?v=Wim9WJeDTHQ What's special about 277777788888899?] - Numberphile video |
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=={{header|11l}}== |
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{{trans|Python}} |
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<lang 11l>F mdroot(n) |
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V count = 0 |
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V mdr = n |
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L mdr > 9 |
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V m = mdr |
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V digits_mul = 1 |
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L m |
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digits_mul *= m % 10 |
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m = m I/ 10 |
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mdr = digits_mul |
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count++ |
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R (count, mdr) |
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print(‘Number: (MP, MDR)’) |
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print(‘====== =========’) |
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L(n) (123321, 7739, 893, 899998) |
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print(‘#6: ’.format(n), end' ‘’) |
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print(mdroot(n)) |
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[[Int]] table |
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table.resize(10) |
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V n = 0 |
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L min(table.map(row -> row.len)) < 5 |
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table[mdroot(n)[1]].append(n) |
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n++ |
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print(‘’) |
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print(‘MP: [n0..n4]’) |
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print(‘== ========’) |
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L(val) table |
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print(‘#2: ’.format(L.index), end' ‘’) |
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print(val[0.<5])</lang> |
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=={{header|Ada}}== |
=={{header|Ada}}== |
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