Perfect numbers and Mersenne primes by Keith Conrad
= Perfect numbers and Mersenne primes by Keith Conrad
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By <Keith Conrad>.
Online text: https://kconrad.math.uconn.edu/blurbs/ugradnumthy/perfect-numbers-mersenne.pdf
Cited passages: Theorem 1.1, pp. 1–2: even-number equivalence and proof; §1, Theorem 1.1 and Example 1.2, pp. 1–2.