30到50的质数,合数,奇数,偶数
问题描述:
30到50的质数,合数,奇数,偶数
答
质数:31,37,41,43,47
合数:30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50
奇数:31,33,35,37,39,41,43,45,47,49
偶数:30,32,34,36,38,40,42,44,46,48,50