Which ONE of the following describes a prime number?
A natural number that has a factor of $1$1.
A natural number that has at most two factors: itself and $1$1.
A natural number greater than $1$1 that has exactly two factors: itself and $1$1.
A natural number greater than $1$1 that has more than two factors.
Which ONE of the following describes a composite number?
True or False?
$54$54 is a prime number.
True or False?
79 is a prime number.