The factor pairs of 144 are (144,1)(72,2)(48,3)(36,4)(24,6)(18,8)(16,9)(12,12)
None of them add up to 7. If that was -144, you could use 16 and -9.
The complex conjugate pair, (3.5 + 11.4782*i) and (3.5 - 11.4782*i) where i is the imaginary square root of -1.
7 + 13 = 20 Note that there are no two prime numbers x and y that multiply to 20.
7 x 8 = 58 When you factor that into prime factors: 7 x 2 x 4 7 x 2 x 2 x 2 you get the four prime numbers that equal 56.
7 x 11
7, 11 and 13.
70 = 2 * 5 * 7.
-137
-137
151
-16 and 9
-127
5 and 7
5 and 7
7 x 3
7 x 19
-17
-1
5 and 12