The 8 factors of 170 are 1, 2, 5, 10, 17, 34, 85, and 170. The prime factors of 170 are 2, 5, and 17.
13 and -2
The factors of -170 are: -1 -2 -5 -10 -17 -34 -85 -170 The prime factors are: -2 x -5 x -17
Common factors of 170 and 164 are: 1 and 2.
-13
170 + 170 = 340
2 x 13 = 26
1, 2, 5, 10, 17, 34, 85, 170
1, 2, 5, 10, 17, 34, 85, and 170.
As a product of its prime factors: 2*5*7 = 170
The factors of 26 are 1, 2, 13 and 26. For them to be common, they need to be compared to another set of factors.
2, 5 and 17