学习《算术理论》一书有关数的整除性时,有必要联系小学教材和教学工作的实际,弄清几个有关的问题。一、关于整除的两种定义。整除的定义,常见的有两种。第一种是:如果整数a除以自然数b,所得的商正好是整数而没有余数,我们说a能被b整除。第二种定义是:a和b都是自然数,如果a除以b所得 When studying the divisibility of numbers in Arithmetic Theory, it is necessary to relate the actuality of primary school teaching materials and teaching to clarify a few related issues. First, on the two divisions of the definition. Divide the definition, there are two common. The first one is: If the integer a divided by the natural number b, the resulting quotient is exactly an integer without a remainder, we say that a can be divisible by b. The second definition is: a and b are natural numbers, if a divided by b income