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影0___

#1 Created at ... [Delete] [Delete and Lock User]
'use strict';

function get_primes(arr) {
    var arr_new = arr.filter(function (num){
        var i = 2;
        if (num === 1){
            return false;
        }
        while (num % i !== 0){
            i = i + 1;
        }
        return i === num;
    })
    return arr_new;

}

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