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练习

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J微风幽兰

#1 Created at ... [Delete] [Delete and Lock User]
return arr.filter(function(s) {
    var max = 0;
    if (s <= 1) return false;
    for (var i = 2; i < s; i++) {
        if (s % i == 0 ) max++;

    }
    return !max;

});

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