问一道DS题

nanlisusan

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If a and b are positive integers, what is the value of the product ab?

(1) The least common multiple of a and b is 48.

(2) The greatest common factor of a and b is 4.

• AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
• BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
• CBOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
• DEACH statement ALONE is sufficient.
• EStatements (1) and (2) TOGETHER are NOT sufficient.
• 想问一下各位大神这道题怎么个思路？
  

pcccccm

有个公式，ab乘积等于ab的最大公约数乘上最小公倍数。

陌上EvaF

pcccccm 发表于 2017-10-10 11:44
有个公式，ab乘积等于ab的最大公约数乘上最小公倍数。

同意！               

nanlisusan

pcccccm 发表于 2017-10-10 11:44
有个公式，ab乘积等于ab的最大公约数乘上最小公倍数。

还可以这样操作！太谢谢了