For any integer k greater than 1, the symbol k* denotes the product of all integers between 1 and k, inclusive. If k* is a multiple of 315 what is the least possible value of k?  Choices:
A) 5	B) 7	C) 9	D) 11	E) 13

Rationale: 315 = 3 * 3 * 5 * 7 thus k must include numbers at least up to the number 7 . the answer is b .
Answer: B