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Prime Number

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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.

Prime number is an elementary-school-level concept. It is listed in the California State Standards for Grade 4.

Prerequisites

Divisor: An integer that divides a given integer with no remainder. A synonym for factor.

Classroom Articles on Pre-Algebra (Up to Elementary-School Level)

  • Associative
  • Integer
  • Cartesian Coordinates
  • Line
  • Commutative
  • Power
  • Decimal Expansion
  • Prime Factor
  • Distributive
  • Prime Factorization
  • Equal
  • Quotient
  • Fraction
  • Right Angle
  • Function Graph
  • Rounding