# 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.