Four number groups are given, out of which three are same in a certain way. Find the odd group that does not belong to the group?

(45, 6, 7) (15, 3, 4) (33, 5, 6) (17, 4, 5)

(17, 4, 5)

6 × 7 = 42 + 3 = 45            3 × 4 = 12 + 3 = 15 5 × 6 = 30 + 3 = 33            4 × 5 = 20 + 3 = 23 \(\neq \) 17