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Prime Counting Function -- from the MathWorld Classroom

TOPICS Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics Foundations of Mathematics Geometry History and Terminology Number Theory Probability and Statistics Recreational Mathematics Topology Alphabetical Index New in MathWorld Prime Counting Function


The prime counting function is a function that gives the number of primes less than or equal to a given positive number.

Prime counting function is a college-level concept that would be first encountered in a number theory course.

Prerequisites Prime Number: A prime number is a positive integer that has exactly one positive integer divisor other than 1 (i.e., no factors other than 1 and itself). Prime numbers are often simply called primes.
Classroom Articles on Number Theory (Up to College Level)
  • Congruence
  • Partition
  • Continued Fraction
  • Perfect Number
  • Convergent
  • Prime Factorization Algorithms
  • Diophantine Equation
  • Prime Number Theorem
  • Divisor Function
  • Quadratic Reciprocity Theorem
  • Euclidean Algorithm
  • Squarefree
  • Euler-Mascheroni Constant
  • Totient Function
  • Fermat's Last Theorem
  • Transcendental Number
  • Number Theory

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