c++ Prime/composite number & prime factorization
I must create A program that takes a users input, then tells the user if that number is prime or composite, if composite it must display all of the composite numbers prime factors. Someone please take a look at it! #include <iostream> using namespace std ...
Basic Searching for Prime Numbers
The librarian of the great library of Alexandria, Eratosthenes (276-194 B.C.), is mostly remembered for his prime number sieve. A method he used to separate out primes from their common composite companions. Here’s how it works by hand (the scheme is ...
Largest prime number yet discovered
You know you're a geek if you felt all warm and fuzzy inside when you read that headline. If you got here by accident, here's the news: The biggest prime number yet has been discovered. It is indeed massive, more than 17 million digits long.
Researchers Make Quantum Processor Capable of Factoring a Composite Number Into Prime Factors
Aug. 19, 2012 — Computing prime factors may sound like an elementary math problem, but try it with a large number, say one that contains more than 600 digits, and the task becomes enormously challenging and impossibly time-consuming. Now, a group of ...
Perhaps a simpler way to Find Prime Numbers 2
Lets start with the idea that every prime number except the number 2 is an odd number. Every odd number is either a Prime Number, or the result 2 Primes being multiplied together or the result of a Prime Number being multiplied with the result of two ...