Problem 2544. Determine if given number is perfect
Example
The number 6 is perfect since its factors (other than 6) are 1, 2, and 3.
1 + 2 + 3 = 6
Return 1 for true (perfect), otherwise 0.
Solution Stats
Problem Comments
-
4 Comments
Show
1 older comment
Guillaume
on 3 Sep 2014
Could you improve your test suite with more test cases? (e.g. 496, 28 (true) and 26, 500 (false))
Ned Gulley
on 4 Sep 2014
I added some more tests.
Jean-Marie Sainthillier
on 6 Sep 2014
See problem 1012.
J.R.! Menzinger
on 16 Sep 2014
The point "the sum of its factors" is not correct. it must be "the sum of all his divisors"... :-/
Solution Comments
Show commentsProblem Recent Solvers41
Suggested Problems
-
Find the longest sequence of 1's in a binary sequence.
5923 Solvers
-
Return the 3n+1 sequence for n
8119 Solvers
-
417 Solvers
-
Find the index of n in magic(n)
233 Solvers
-
Find out value of polynomial at different value.
134 Solvers
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!