PHP - check if number is prime

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野趣味
野趣味 2021-01-25 00:03

I\'m trying to create a function which checks whether the number is prime or not. BUT I want this function to echo to the user \'prime\' or \'NOT prime\' - and that\'s where my

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  •  逝去的感伤
    2021-01-25 00:28

    Please Check this

    class IsPrime
    {       
        function check($num)
        {
            for ($i = 2; $i < $num; $i++)
            {
                if ($num % $i == 0) 
                {
                    return 'NOT prime';
    
                }
    
            }
            return 'Prime';           
        }       
    }
    
    $x = new IsPrime();
    $result = $x->check(4);
    echo $result;
    

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