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106.35 On the representation of rational numbers in the form 
Published online by Cambridge University Press: 12 October 2022
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- © The Authors, 2022. Published by Cambridge University Press on behalf of The Mathematical Association
References
Totient function, Encyclopedia of Mathematics, http://encyclopediaofmath.org/index.php?title=Totient_function&oldid=35643
Google Scholar
Krachun, D., Sun, Z.-W., Each positive rational number has the form φ (m 2)/φ (n 2), The American Mathematical Monthly, 127(9) (2020) pp. 847–849.Google Scholar