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<h1 align=center>  Equivalent forms involving arithmetic functions
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The Riemann hypothesis is equivalent to several statements involving average or extreme values of arithmetic functions. These are complex-valued functions, defined on the set of positive integers, often related to the factorization of the variable into a product of prime numbers.
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Back to the 
<a href="http://www.aimath.org/WWN/rh/"> main index</a> 
for The Riemann Hypothesis.
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