Question 8897
A prime number is a number larger than 1 that cannot be broken down into a product of smaller numbers.  A number larger than 1 that CAN be broken down into the product of two or more numbers is said to be a composite number.  The number 1 is neither prime nor composite.  For examples, 2, 3, 5, 7, 11, etc. are prime numbers since they cannot be broken down.  The numbers 4, 6, 8, 9, 10, 12, etc. are composite numbers.  


Real numbers consist of all numbers whose distance can be measured on the numberline, including whole numbers like 1, 2, 3, 4, etc. 0 and the negative integers like -1, -2, -3, etc. all fractions, and decimals, and even numbers that don't come out even, like {{{sqrt(2), sqrt(3), and pi}}} etc.  See the page on my own website which is not yet a lesson plan for algebra.com (maybe coming soon to algebra.com, who knows!) from Basic Algebra by clicking on my tutor name "rapaljer" anywhere in this website, go to Basic Algebra, look for "Samples of Basic Algebra: One Step at a Time", "Chapter 1," then "Section 1.01 Number Systems."  This section may be helpful.


R^2 at SCC