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Perfect numbers: Difference between revisions
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→optimized using digital root: added whitespace.
m (→{{header|REXX}}: changed a comment to not use abbreviation for digital.) |
m (→optimized using digital root: added whitespace.) |
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w=length(high) /*use W for formatting output. */
numeric digits max(9,w+2) /*ensure enough digits to handle#*/
do i=low to high /*process the single # or range. */
if isPerfect(i) then say right(i,w) 'is a perfect number.'
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