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交作业

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当下sunxyz

#1 Created at ... [Delete] [Delete and Lock User]
  function t(x){
    var f = true; 
    for(var i=2;i<x;i++){ 
        if(x%i===0){
            f = false;
            break;
        }
    }
    return f;
  }   
return arr.filter(x=>t(x)&&x!=1);

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