Lemma
MediumDivisibility
AQuA-RAT train #9617 · Number Theory · Divisibility

If the positive integer N is a perfect square, which of the…

If the positive integer N is a perfect square, which of the following must be true? I. The number of distinct factors of N is odd. II. The sum of the factors of N is odd. III. The number of distinct prime factors of N is even.

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #9617

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