Yes. Factor pairs are always repeated across pairs since factor pairs are certain kinds of pairs.
The factor pairs of 27 are 1x27 and 3x9.
The factor pairs of 14 are 1*14, and 2*7
(36,1)(18,2)(12,3)(9,4)(6,6)
There are 2 factor pairs of 26.26 = 1 x 2626 = 2 x 13
Explaining how to find all factors pairs of 40 is easy. All you have to do is find which whole numbers 40 can be divided into.
algebra
Between 35 and 40, 36 has the most factor pairs.
(40,1)(20,2)(10,4)(8,5)
because if you divide 40 by 1,2,4,and5 you will get the answer (and what about 8, 10, 20, and 40 ? are they nothing but chopped liver ?)
The rules of divisibility tell you that 40 is divisible by 1, 2, 4 and 5. Dividing 40 by those numbers gives you 40, 20, 10 and 8. Writing them together gives you the factor pairs of 40. (40,1)(20,2)(10,4)(8,5)
40 has four factor pairs:40 = 1 x 4040 = 2 x 2040 = 4 x 1040 = 5 x 8
The factor pairs of 20 are: 20,1 / 10,2 / 5,4
(80, 1) (40, 2) (20, 4) (16, 5) (10, 8)
1 and 80 2 and 40 4 and 20 5 and 16 8 and 10
(40,1)(20,2)(10,4)(8,5)
1x40 2x20 4x10 5x8