A particular online game requires that you create a 6 digit number. The only digits available are 2,5, and 7, but you can use multiple copies of these digits if you wish. How many different 6 digit...

Please read the question carefully, it tricked me up.

Extracted text: A particular online game requires that you create a 6 digit number. The only digits available are 2,5, and 7, but you can use multiple copies of these digits if you wish. How many different 6 digit numbers can be formed if the only digits available for use are 2,5, and 7?