# Prime Numbers - Finding Prime Numbers, Prime Numbers In Modern Life

###
divisible

A prime number is any number greater than 1 that is divisible only by itself and 1. The only even prime number is 2, since all other even numbers are at least divisible by themselves, 1, and 2.

The idea of primacy dates back hundreds of years. Mathematicians began putting forth ideas concerning prime numbers as early as 400 B.C., but Greek mathematician Euclid is largely credited with publishing the first **concrete** theories involving prime numbers in his work *Elements* (est. 300 B.C.). Since then, prime numbers have proved to be elusive mysteries in the world of **mathematics**.

## Additional Topics

Any discussion on the location process for prime numbers must begin with the statement of one fact: there is an infinite number of prime numbers. All facts in mathematics must be backed by a proof, and this one is no exception. Assume all prime numbers can be listed like this: p1, p2, p3,...pN, with p1 = 2, p2 = 3, p3 = 5, and pN = the largest of the prime numbers (remember, we are assuming there …

A question one might ask at this point is "How is any of this important?" Believe it or not, theories about prime numbers play an important role in big money banking around the world. Computers use large numbers to protect money transfers between bank accounts. Cryptographers, people who specialize in creating and cracking codes, who can factor one of those large numbers are able to …

## Citing this material

Please include a link to this page if you have found this material useful for research or writing a related article. Content on this website is from high-quality, licensed material originally published in print form. You can always be sure you're reading unbiased, factual, and accurate information.

Highlight the text below, right-click, and select “copy”. Paste the link into your website, email, or any other HTML document.

## User Comments