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题库 / Prep2007E2-DS-166
If the prime numbers p and t are the only prime factors of the integer m, is m a multiple of p2t ?
(1) m has more than 9 positive factors.
(2) m is a multiple of p3.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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multiple of pt：pt的倍数。第一次看题目没有看明白。导致错误
A选项的情况，如果有9个因素，先假设一个P, 一个t， 剩余7可能都是合数，或者含有或全部都是P和t，如果都是合数或者t更多，那么不成立。
B选项，用以上相同思维，是成立的，
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