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1·For most people, however, deciding on the elusive perfect number can be tough.

不过，对绝大多数的人来说，要确定这一难以琢磨的数值的最合适的取值可能非常困难。

2·Many important conclusions in relation to even perfect number research have been drawn.

人类在研究与寻找完全数时得到结论：偶完全数与梅森素数是一一对应关系。

3·Whenever it identifies a perfect number, your program should display that number on the screen.

一旦发现一个完美数字，你的程序需要将该数字显示到屏幕上。

4·Perfect number, amicable number and anti-sociable numbers are important topics in number theory.

完全数、相亲数以及孤立数一直是数论研究的一个重要课题。

5·What problem am I trying to solve? I need to make sure that my number classifier doesn't identify an imperfect number as perfect.

我试图解决的问题是确保我的数字分类器不会将非完全数识别为完全数。

6·A more algorithmic definition for a perfect number is a number where the sum of the factors (excluding the number itself) equals the number.

更规则的完全数定义是因子(不包括该数字本身)之和等于该数字的数字。

7·A study of 1,000 women aged 18 to 45 found that just under half (49 per cent) believe that four is the perfect number of best friends to have.

一项对1000名年龄在18岁到45岁之间的女性开展的研究发现，近一半(49%)的女性认为拥有四个好朋友最理想。

8·I must decompose the problem and think about what perfect number means. I can easily come up with several steps required to discover a perfect number.

我必须分解问题并回想“完全数”的含义。

9·In this paper, the definitions of prime number and perfect number are introduced, and the largest of them having been found at present in the world are also described.

本文给出素数和完全数的定义，还给出了当前世界上最大的素数和完全数。

10·I need to determine if a number is perfect.

我需要确定某个数字是不是完全数。