MathDB
Putnam 1998 B5

Source:

April 7, 2012
PutnamsearchLaTeXcollege contests

Problem Statement

Let NN be the positive integer with 1998 decimal digits, all of them 1; that is, N=1111⋯11.N=1111\cdots 11. Find the thousandth digit after the decimal point of N\sqrt N.
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