1 and 17
17 is a prime number, so the only factor pair is 1 x 17.
The factor pair of 17 is 1*17. Because 17 is prime, it has only one factor pair.
Yes.
17 and 4 have a difference of 13 and is a factor pair of 68
17 has one factor pair, 1 and 17.
factor pair = 1512,1 factor pair = 756,2 factor pair = 504,3 factor pair = 378,4 factor pair = 252,6 factor pair = 216,7 factor pair = 189,8 factor pair = 168,9 factor pair = 126,12 factor pair = 108,14 factor pair = 84,18 factor pair = 72,21 factor pair = 63,24 factor pair = 56,27 factor pair = 54,28 factor pair = 42,36
factor pair = 650,1 factor pair = 325,2 factor pair = 130,5 factor pair = 65,10 factor pair = 50,13 factor pair = 26,25
They are: 17 and 4
factor pair = 36,1 factor pair = 18,2 factor pair = 12,3 factor pair = 9,4 factor pair = 6,6
factor pair = 90,1 factor pair = 45,2 factor pair = 30,3 factor pair = 18,5 factor pair = 15,6 factor pair = 10,9 Doctor Chuck Mathdoc
221 has two factor pairs: 13 * 17 and [perhaps redundantly] 1 * 221
factor pair = 76,1 factor pair = 38,2 factor pair = 19,4