212
-38
100 and 100 can add to 200 50, 50, 50, and 50 can add to 200 8 25s can add to 200 20 10s can add to 200
497
-261
The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36 No two of them add up to 23.
170
1012
4 and 12
The factors that multiply to 120 and add up to -8 are -12 and 10. This is because when you multiply -12 and 10, you get -120, and when you add them together, you get -8. Thus, the pair of factors you are looking for is (-12, 10).
12+12+12+12
-144
375
-38
-1, 6 and -12.
The only number between 30 and 40 with distinct prime factors which add up to 12 is 35.
-10 and 2 -12 and 4 -20 and 12
Well, 18 and 3 (both factors of 36) add up to 21. As well, the factors 12 and 9 add up to 21.