Perfect NumbersDate: 9/15/96 at 19:20:14 From: Anonymous Subject: Numbers What is a "perfect number"? Thanks. Date: 10/27/96 at 22:53:34 From: Doctor Sam Subject: Re: Numbers Mathematicians and number enthusiasts have been fascinated for centuries by the divisors of numbers. They have noticed that some numbers like 6 = 1+2+3 and 28 = 1 + 2 + 4 + 7 + 14 are equal to the sum of all of their factors (not including the number itself). They have called such numbers PERFECT. If you add up the divisors of a number like 10 you will find that 1+2+5 = 8. -Dr. Sam |
Search the Dr. Math Library: |
[Privacy Policy] [Terms of Use]
Ask Dr. Math^{TM}
© 1994-2015 The Math Forum
http://mathforum.org/dr.math/