They are 1 and 3
1, 2, 3, 6
r^2 - 12r + 27 what two factors of 27 add up to - 12? (r - 3)(r - 9) FOIL that and get the quadratic polynomial back
1, 3, 9, 27 1, 3, 19, 57
1 and 5
How about: 8 16 and 24
1,11,12,13,14,15,16,17,18,19,2,6,7,8,9,3,4,5, those r some of the factors between 10 and 20
17 and 34's highest common factor is 17.
-9
Greatest common factor of 12 and 18 and 24 is 6.
The factors for 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72.
presumably, r=27?
Calculate the least common multiple of the three numbers. Any multiple of that has all those numbers as factors.