The Number Two May 18, 2008
Posted by patchworktortoise in Numbers.add a comment
One of the earliest classification of numbers into groups was on the basis of their divisibility by the number two.
Numbers exactly divisible by two are called even and those that leave a remainder of one when divided by two are called odd.
All numbers belong in one of these two groups.
Prime Example May 12, 2008
Posted by patchworktortoise in Numbers.1 comment so far
What is special about this number?
170,141,183,460,469,231,731,687,303,715,884,105,727
It’s a prime number, divisible only by itself and one.
The Number One May 7, 2008
Posted by patchworktortoise in Numbers.1 comment so far
The first idea of number starts with the recognition that there is a difference between one and more than one.
One generates all the other numbers by successive additions of itself. One defines all the other numbers.
