Erdős problem 686 · problems.science

Can every integer $N≥2$ be written as $N=\frac{\prod_{1\leq i\leq k}(m+i)}{\prod_{1\leq i\leq k}(n+i)}$ for some $k≥2$ and $m≥n+k$ ?

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8 retained statements2415f78e850a

FormalConjectures/ErdosProblems/

686.lean

Retained formal statement4 of 8

The number $4$ cannot be written as $4=\frac{\prod_{1\leq i\leq 2}(m+i)}{\prod_{1\leq i\leq 2}(n+i)}$ for $m≥n+2$ !

FormalConjectures/ErdosProblems/686.leanErdos686.erdos_686.variants.four_two1 lineExact file

1¬∃ n, ∃ m ≥ n + 2, 4 = ↑(∏ i ∈ Finset.Icc 1 2, (m + i)) / ↑(∏ i ∈ Finset.Icc 1 2, (n + i))

SolvedStatement only, no proof