RosettaCodeData/Task/Digital-root/Potion/digital-root.potion

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digital = (x) :
dr = x string # Digital Root.
ap = 0 # Additive Persistence.
while (dr length > 1) :
sum = 0
dr length times (i): sum = sum + dr(i) number integer.
dr = sum string
ap++
.
(x, " has additive persistence ", ap,
" and digital root ", dr, ";\n") join print
.
digital(627615)
digital(39390)
digital(588225)
digital(393900588225)