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2022-08-05 16:51:27 查看(45) 回复(0)
public class qwe { public static void main(String[] args) { int x=17; boolean f=true; for (int i=2;i<Math.sqrt(x);i++){ if (x%i==0){ f=false; break; } } if (f){ System.out.println("是素数"); }else { System.out.println("不是素数"); } } }
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