Factors multiply. The same set of numbers won't add up to both 140 and 240, but 120 and 20 are factors of 240 that total 140.
Defective numbers are when all the factors of a number add up to be smaller than the number.Ex.:39 1+3+13=17 17<39 39 is defective
The four factors of 33 add up to 48.
212
31
factors of 30 that add to 17 are 2 and 15
527
-43
127
The factors of 21 that add up to 8 are 1 and 7.
The factors of 68 are 1, 2, 4, 17, 34 and 68. None of them add up to 15 unless you use a bunch of ones and twos. If that's -68, you can use 17 and -2.
None. Factors don't add, they multiply.
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
Factors multiply. The same set of numbers won't add up to both 140 and 240, but 120 and 20 are factors of 240 that total 140.
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
-1005
167