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Meaning of Euler's criterion | Babel Free

Noun CEFR B2
ˈɔɪ̯.lə(ɹ)z kɹaɪ̯ˈtɪ.ɹi.ən

Definitions

A theorem which states that, given a positive integer a which is coprime to an odd prime number p, a is a quadratic residue of p if and only if a^((p-1)/2) is congruent to 1 modulo p.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

Euler's formula Euler's identity Euler's method Euler's number Euler's polyhedron formula Euler's rotation theorem

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