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素数 测试通过

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徐万林

#1 Created at ... [Delete] [Delete and Lock User]
var oarr = arr.filter(function(s) {
        var c = 0;
        for (var i = 1; i <= s; i++) {
            var num = s / i;
            if ((num == Math.floor(num)) && (num == Math.ceil(num))) {
                 c+=1;
            } else {
               continue;
            };

        }
        if(c==2){return true}

    })

    return oarr;

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