Perfect numbers: Difference between revisions

m
m (→‎{{header|Wren}}: Minor tidy)
imported>Arakov
 
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=={{header|Elena}}==
ELENA 46.x:
<syntaxhighlight lang="elena">import system'routines;
import system'math;
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{
isPerfect()
= new Range(1, self - 1).selectBy::(n => (self.mod:(n) == 0).iif(n,0) ).summarize(new Integer()) == self;
}
public program()
{
for(int n := 1,; n < 10000,; n += 1)
{
if(n.isPerfect())
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