bn:00837164n
Noun Concept
EL
αριθμός stormer
EN
In mathematics, a Størmer number or arc-cotangent irreducible number is a positive integer n {\displaystyle n} for which the greatest prime factor of n 2 + 1 {\displaystyle n^{2}+1} is greater than or equal to 2 n {\displaystyle 2n}. Wikipedia
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