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What is the 125th digit beyond the decimal point in the decimal representation of 4/7?

 Sep 6, 2020
 #1
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The 125th digit is 1.

 Sep 6, 2020
 #2
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4/7 = 0.571428571428571428.....etc

 

Groups of 6 digits repeat.  125 = 5 mod(6), and the 5'th digit of the 6 repeating digits is 2, so this is the 125'th digit beyond the decimal point. 

 Sep 6, 2020

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