A computer in Missouri has discovered the largest known prime number, 2^74,207,281– 1. It is about 22 million digits long, 5 million digits longer than the previous largest known prime, which was discovered in January 2013.
Primes that can be written as one less than a power of two, i.e 2^n – 1 for some n, are known as Mersenne primes after the French monk Marin Mersenne who...
Big-data analysis consists of searching for buried patterns that have some kind of predictive power. But choosing which "features" of the data to analysis usually requires some human intuition. In this case, though, the researchers tested their first prototype system that analysis big-data against human teams in three data science competitions. The machine managed to finish ahead of a total of 615 human teams.