3^13 is equal to which of the following?
Choose the correct choice from the following options:
A) 1,595,423  B) 1,595,401  C) 1,595,477  D) 1,595,432  E) 1,595,409
Given that the answers have different last digits, there are several ways to solve this, but the most straight forward way is to check the algorithm. 3^n has a cycle of 4.   3^1 = 3   3^2 = 9   3^3 = 27   3^4 = 81   3^5 = 243   Observe that the last digit of the resultant of 3^1 and 3^5 is 3. If we continue 3^n, the last digit follows the pattern 3, 9, 7, 1, 3, 9, 7, 1, 3, .... So, all we need look for is the last digit in the pattern.   Cycle of 4, power of 13, last digit is 3.   1,595,423nswer: 1,595,423
<result>A</result>
3^13 is equal to which of the following?