Prime Number

Written by Jerry Ratzlaff on . Posted in Algebra

A prime number can be divided evenly only by \( \;1\), or itself and it must be a whole number greater than \( \;1\).

  • \( \;5\; \) is a prime number because only \( \;1\; \) and \( \;5\; \) divide \( \;5\; \) evenly.
  • \( \;9\; \) is not a prime number because \( \;3\;x\;3\;=\;9 \).
  • The first ten prime numbers are: \( \;2,\; 3,\; 5,\; 7,\; 11\;, 13,\; 17,\; 19,\; 23,\; 29,\;...\).
  • There is no pattern or formula for counting indefinitely by primes.