| 1. | There are four primes less than 10 : 2 , 3 , 5 , and 7 . it is interesting to note that the percentage of primes in the range 1 to 10 is 40 % . the percentage decreases as the range increases
有四个小于10的素数： 2 、 3 、 5和7 。有趣的是，我们注意到在1到10的范围内素数所占的百分比是40 % 。随着范围的变大，素数所占百分比也在变大。 |
