Answer:
1/1296
Step-by-step explanation:
Assuming that the probability of rolling a number is the same (1/6), all we have to do it multiply 1/6 by 4 (the number of times you roll the dice).
So 1/6 * 1/6 * 1/6 * 1/6 is just 1/6^4 and 6^4 is 1296.
Therefore the probability of rolling a 6 4 times in a row is 1/1296.