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13
Task/Digital-root/Arturo/digital-root.arturo
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13
Task/Digital-root/Arturo/digital-root.arturo
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@ -0,0 +1,13 @@
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droot: function [num][
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persistence: 0
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until [
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num: sum to [:integer] split to :string num
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persistence: persistence + 1
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][ num < 10 ]
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return @[num, persistence]
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]
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loop [627615, 39390, 588225, 393900588225] 'i [
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a: droot i
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print [i "has additive persistence" a\0 "and digital root of" a\1]
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]
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