Quote:
Originally posted by Colin@Nov 21 2002, 09:24 AM
Know the "division by 3" test?
if you add all the digits in a number and that number is divisible by 3, the whole number is divisible by 3.
For example,
7,245 = 7+2+4+5 = 18 is divisible 3 so 7245 is divisible by 3.
|
thats cool stuff...i was a math major at university so i like all the little number tricks...keep em coming...
Last edited by Phoenix at Nov 21 2002, 09:32 AM