把15,18,21,22,42,44,50,60,分成乘积4相等的两组.
问题描述:
把15,18,21,22,42,44,50,60,分成乘积4相等的两组.
答
15,21,44,60/18,22,42,50
15,22,42,60/18,21,44,50
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