527
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
268
23
The factors of -60 that add up to 17 are 20 and -3. When you multiply 20 and -3, you get -60, and when you add them together, you get 17. Therefore, the pair of factors you are looking for is 20 and -3.
47
497
487
How about 47+47 = 94 as one example
The factors of 21 that add up to 8 are 1 and 7.
37
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.
2 & 47
53+47
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
167