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 What is the last number in 3 to the power of 2139

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What is the last number in this problem below

3 to the power of 2139

 May 8, 2015

Best Answer 

 #1
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+8

Note

3^1 = 3

3^2 = 9

3^3 = 27

4^4 = 81

And this pattern repeats

So

2189 / 4 = 547 + 1/4

So...the last digit is 3

 

  

 May 8, 2015

1+0 Answers

 #1
avatar+6 
+8
Best Answer

Note

3^1 = 3

3^2 = 9

3^3 = 27

4^4 = 81

And this pattern repeats

So

2189 / 4 = 547 + 1/4

So...the last digit is 3

 

  

CPhill2 May 8, 2015

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