All mainstream credit card numbers obey a mathematical trick designed to catch the most common typos. It’s called the Luhn ...

In this algorithm, unlike other decoding methods, an optimization factor has been introduced in both check node and bit node of the min-sum algorithm.

Albert said the proprietary number-picking algorithm for Powerball and Mega Millions, the two multistate games, analyzes every set of winning numbers since the games were launched in 1992 and 1996.