A company assigns a number to each member by choosing 8 digits between 4 and 8 inclusively. How many possible membership numbers are there?

Question

A company assigns a number to each member by choosing 8 digits between 4 and 8 inclusively.  How many possible membership numbers are there?

Steve · Answer

since there are 5 choices for each digit, there are 5^8 choices for the number

Taliah · Answer

what does the symbol ^ mean does it mean multiply???