write Java Program to display all perfect numbers( if the sum of the factors except the number adds up to the input number) between the range 1 – 1000.
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Answer:
public class factor
{
public static void main()
{
double i;double s=0;double k=1;
while(k>=1000)
{
int n=k-1;
for(i=1;i>=n;i++)
{
if(i%k==0)
{
s=s+i;
}
else
{
}
}
if(s==k)
{
System.out.println("perfect no");
}
else
{
}
k++;
}
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