Topic:
Perfect Numbers In C
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Perfect Numbers in C
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I think that you've got two questions mixed up - one about numbers and one about shapes.
There's a trick you can use here, similar to the way you test to see if a number is divisible by 3. if you want to know if 2265 is divisible by three, you add up the digits: 2+2+6+5=15 and 1+5=6 since 6 is divisible by 3, 2265 is divisible ...
