小编klo*_*loe的帖子

b=input("Enter number : ")
for n in range(2, b+1):
     for x in range(2, n):
         if n % x == 0:
              break
     else:
          print n

该程序打印的素数最多为n out put is

输入数字:10
2
3
5
7

和

b=input("Enter number : ")
for n in range(2, b+1):
     for x in range(2, n):
         if n % x == 0:
              break
         else:
              print n

out put是

输入数字:10
3
5
5
5
7
7
7
7
7
9