If L is the least positive integer that is divisible by every integer from 1 to 9 inclusive, then L/2 is =
Choose the correct answer
A) 5040
B) 2520
C) 1890
D) 1260
E) 630

Rationale: the integer should be divisible by : 2 , 3 , 4 , 5 , 6 , 7 , 8 and 9 , that is 2 , 3 , 2 ^ 2 , 5 , 2 * 3 , 7 , 2 ^ 3 and 3 ^ 2 . the least common multiple of these integers is the product of 7 , 5 , 3 ^ 2 and 2 ^ 3 . then , l / 2 is ( 7 * 5 * 3 ^ 2 * 2 ^ 3 ) / 2 = 7 * 5 * 9 * 4 = 1260 . answer : d .
Answer: D