(1, 51) (3, 17)
1 and 85 5 and 17
1 and 17
(1, 68) (2, 34) (4, 17)
There are 2 factor pairs of 34:34 = 1 x 3434 = 2 x 17
1 x 85, 5 x 17, 17 x 5, 85 x 1
17 has one factor pair, 1 and 17.
17 is a prime number, so the only factor pair is 1 x 17.
1x40, 2x20, 4x10, 5x8 are all the factor pairs of 40.
1 x 17, 17 x 1 (17 is a prime number).
The factor pairs of 20 are: 20,1 / 10,2 / 5,4
17 is prime. Its only factors are 1 and 17.