"A divisibility rule is a shorthand way of discovering whether a given number is divisible by a fixed
divisor without performing the division, usually by examining its digits." -Math Goodies
Factoring
Trying to discover what to multiply to get the outcome of an expression.
Divisibility
GFE
(Greatest Common Factor) is the process
of finding the largest number than can
be multiplied by another numberto get
and answer.