1 and 2 are both factors of -1008 and they add up to 3.
1008 = 2*2*2*2*3*3*7.
The prime factors of 540 are: 2, 3, 5 The prime factors of 1,008 are: 2, 3, 7
The factors of -504 are 2, 2, 2, 3, 3, 7 and -1. Then the factors that add to -3 are -24 and 21.
-8
23
1510
The factors of 1008 are 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, and 1008. The prime factorization of 1008 are 2 x 2 x 2 x 2 x 3 x 3 x 7.
-3
268
Pairs of positive integer factors of 1008 are: 1 x 1008 = 1008 2 x 504 = 1008 3 x 336 = 1008 4 x 252 = 1008 6 x 168 = 1008 7 x 144 = 1008 8 x 126 = 1008 9 x 112 = 1008 12 x 84 = 1008 14 x 72 = 1008 16 x 63 = 1008 18 x 56 = 1008 21 x 48 = 1008 24 x 48 = 1008 28 x 36 = 1008 And the sums' reverses.
1 and 2
How about 3 and 6