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Mathematical Sciences Classification System

11Axx - Elementary number theory
{For analogues in number fields, see 11R04}

• 1
  11A05
  Multiplicative structure; Euclidean algorithm; greatest common divisors
• 4
  11A07
  Congruences; primitive roots; residue systems
• 3
  11A15
  Power residues, reciprocity
• 3
  11A25
  Arithmetic functions; related numbers; inversion formulas
• 13
  11A41
  Primes
• 7
  11A51
  Factorization; primality
• 14
  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