A number is perfect if it is equal to the sum of its factors, excluding itself.
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.
Could you improve your test suite with more test cases? (e.g. 496, 28 (true) and 26, 500 (false))
I added some more tests.
See problem 1012.
The point "the sum of its factors" is not correct. it must be "the sum of all his divisors"... :-/
Volume of this donut
Volume and area of a sphere
Create incrementing array
07 - Common functions and indexing 2
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office