Mathematics Week
2004                                                                       

                                                                       

 

 

 

 

 

MONDAY QUESTION
Answers to all four questions (Mon-Thu) are to be placed in boxes outside the SRC on Friday before 4pm.
$100 prize for first correct answers drawn.

 

For students enrolled in MATHS 200-level

 

 

 

 

Perfect Numbers

 

 

A Perfect Number is a positive whole number which is the sum of all its proper factors. For example, 28 = 1 + 2 + 4 + 7 + 14.

 

Show that, for any whole number n, n is Perfect if and only if the sum of all the reciprocals of its positive divisors (including itself) is 2.

For example: 1/1 + 1/2 + 1/4 + 1/7  + 1/14 + 1/28 = 2