Text this

Number:

Provider:

CAPTCHA:

             ___      ______    ______    _  _   
    ___     / _ \\   /_   _//  /_   _//  | \| || 
   /   ||  | / \ ||    | ||     -| ||-   |  ' || 
  | [] ||  | \_/ ||   _| ||     _| ||_   | .  || 
   \__ ||   \___//   /__//     /_____//  |_|\_|| 
    -|_||   `---`    `--`      `-----`   `-` -`  
     `-`

Please enter what you see:

Text this: Vanishing sums of mth roots of unity in finite fields