Find the least positive integer divisible by each of the integers between 5 through 10 (including 10).  Choose the correct option.
A) 560 B) 380 C) 900 D) 2560 E) 2520

Rationale: the integer should be divisible by : 5 , 6 , 7 , 89 , and 10 . the least common multiple of these integers is lcm = 420 . answer : 5 * 3 ^ 2 * 7 * 2 ^ 3 the answer is e )
Answer: E