Does the integer k have at least three different positive prime factors? (1) is an integer. (2)is an integer._出国考试答疑器_GMAT

Does the integer k have at least three different positive prime factors?
(1) is an integer.
(2)is an integer.

A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D、EACH statement ALONE is sufficient.

E、Statements (1) and (2) TOGETHER are NOT sufficient.

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这题老师说最好在integer k前面加一个positive。如果不加不严谨在何处，对题目有何影响？因子质因子这块基本上都是在正数范围内讨论的吗？不过我记得有一道题好像是倍数还是因子来着，只说了小于一个值，然后又因为可以是负数，所以infinite

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