Suppose you secured your phone using a passcode. Later, you realized that you forgot the 6-digit code. You only remembered that the code contains the digits 1, 2,3, 4,5 and 6. How many possible codes can there be?
6 possible digits, 1-6 and the code is 6-digits long. So we have:
6 * 6 * 6 * 6 * 6 * 6 = 6^6 = 46,656 possible codes
6 possible digits, 1-6 and the code is 6-digits long. So we have:
6 * 6 * 6 * 6 * 6 * 6 = 6^6 = 46,656 possible codes