4个相邻偶数起码有1个是3的倍数所以,A+8+3+8+A=19+2A是3的倍数所以,A=1,4,74个相邻偶数的乘积为偶数,所以,A为偶数所以,A=4设4个偶数为:(n-3),(n-1),(n+1),(n+3)则：(n-3)(n-1)(n+1)(n+3)=48384(n^2-9)(n^2-1)=48384n...