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The first term of a sequence is 13. Starting with the second term, each term is the sum of the cubes of the digits in the previous term. For example, the second term is 1^3 + 3^3 = 28. Find the 5th term.

 Oct 29, 2022
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The 5th term is 10

 Oct 29, 2022
 #2
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The first term of a sequence is 13. Starting with the second term, each term is the sum of the cubes of the digits in the previous term. For example, the second term is 1^3 + 3^3 = 28. Find the 5th term.    

 

1st term       13      13 + 33  =  1 + 27  =  28  

 

2nd term      28      23 + 83  =  8 + 512  =  520  

 

3rd term      520     53 + 23 + 03  =  125 + 8 + 0  =  133  

 

4th term      133      13 + 33 + 33  =  1 + 27 + 27  =  55  

 

5th term        55

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 Oct 29, 2022

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