No, it is deficient.
perfect
15 is deficient.
no. its a type of number. as in, a number can be deficient.
A perfect number is one with factors (apart from itself) that sum to give the original number. An abundant number is one where this sum is greater than the original number. A deficient number is one where the sum is less than the original number. The factors of 75 are 1, 3, 5, 15 and 25. The sum of these numbers is 49. Thus 75 is a deficient number.
55 is deficient.
NO- 24 is not deficient.
It's deficient
A deficient number is a number with its proper factors equalling a lower number than itself.
deficient
It is deficient.
That means that the sum of the number's factors, less than the number itself, is less than the number in question - in this case, if you add the factors of 15 (except 15 itself, which is also a factor of 15), you get a total that is less than 15.