-66
-56
The 8 factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56. 2 and 8 add up to 10. Also, 1, 2, and 7 add up to 10.
They are: 14 and 4
-57
-56
-56
-56
56 has two prime factors: 2 and 7.
66
7 and -8
The factors of 56 are 1, 2, 4, 7, 8, 14, 28, 56 1120 is a multiple of 56. To find more multiples of 56, add 56 to 1120 and the subsequent totals.
Oh honey, you must be new to the math game. The only way to add two prime numbers and get 56 is if you're playing make-believe. Prime numbers are loners, they don't like to share their factors with anyone else. So, sorry to burst your bubble, but there are no two prime numbers that can add up to 56. Better luck next time!