0
The Answer is 8 because...
1+2+4+8=15
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Why is15 a deficient number?
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.
Can you add an even number to 15 so that the sum is an even number?
No because two plus 15 equals 17
Is the number 16 an abundant number?
No because a abundant # is a number where the sum of its proper factors is greater than itself. 16 is not an abundant number because the sum of its proper factors is (15) less than itself.
Is 15 a deficient number?
Yes 15 is a deficient number because its factors add upp to less than the number itself,which is 15.
Is 75 perfect abundant or 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.
What is the sum of 15 and 20?
Sum means add them together.15+20=35
WHAT number is a 2 digit number a multiple of both 3 and 4 and the sum of its digits add up to 15?
Numbers below 100 which can be divided equally between 3 and 4 are:12, 24, 36, 48, 60, 72, 84, 96Therefore, the two-digit number whose digits add up to 15 and which shares 3 and 4 as common factors is 96.
What is the sum of 27 and 15?
They add up to 42
What is the sum of all the factors of 15?
1 + 15 + 3 + 5 = 24
What pair of number have the sum of 11 and the product of 15?
The factor pairs of 15 are (15,1)(5,3) Neither of them add up to 11. No integers fulfill your request.
Can you describe a number by both the number of its factors and the kinds of its factors?
There are more than just prime and composite, there are 3 other types which you can describe a number by the kind of factors. They are abundant number, deficient number, and perfect number. An abundant number is a number which if its factors were all added up , the sum would be greater than the number itself. A deficient number is a number in which if all its factors were added up the sum would be less than the number itself. A perfect number is in which a numbers factors are added up and the sum will be the same number as the number itself. Example of abundant number: 12 because these are its factors, 1+2+3+4+6 which equals 16 and 16 is greater than 12. Example of a deficient number: 15 because 15's factors are 1+3+5 which equals 9 and 9 is less than 15. Example of a perfect number: 6 because 6's factors are 1+2+3 which equals 6 and 6 is the same as 6
What is the sum of thefirst 15 prime number?
The sum is 328.
