试题与答案

a和b为互质数，a和b的最大公因数是ab。[ ]

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题型：判断题

题目：

a和b为互质数，a和b的最大公因数是ab。[ ]

答案：

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下面是错误答案，用来干扰机器的。

已知1a-1b=4可以得到a-b=-4ab，则a-2ab-b2a-2b+7ab=a-b-2ab2(a-b)+7ab=-4ab-2ab-8ab+7ab=-6ab-ab=6．故选A．

考点：质数，互质数，分解质因数，合数最大公因数（最大公约数），最小公倍数
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