11Axx

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11Axx Elementary number theory {For analogues in number fields, see 11R04} {Info & Stats}

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• 11A05 Multiplicative structure; Euclidean algorithm; greatest common divisors
• 11A07 Congruences; primitive roots; residue systems
• 11A15 Power residues, reciprocity
• 11A25 Arithmetic functions; related numbers; inversion formulas
• 11A41 Primes
• 11A51 Factorization; primality
• 11A55 Continued fractions {For approximation results, see 11J70} [See also 11K50, 30B70, 40A15]
• 11A63 Radix representation; digital problems {For metric results, see 11K16}
• 11A67 Other representations
• 11A99 None of the above, but in this section