连续整数具有如下简单的性质.(1)两个连续整数之积必为偶数;(2)两个连续整数之积的末位是0,2,6中的一个;(3)三个连续整数之积能被6整除;(4)四个连续整数之积与1的和必为某个 Consecutive integers have the following simple properties: (1) The product of two consecutive integers must be even; (2) The last bit of the product of two consecutive integers is one of 0, 2, and 6; (3) Three consecutive integers The product can be divisible by 6; (4) The sum of the product of four consecutive integers and 1 must be some