An increasing number of residents across Japan have been voluntarily returning their Individual Number Card, known more popularly as the My Number Card, since June as a spate of errors and privacy ...

According to the study, a total of 6,062 medical institutions in 35 prefectures that have installed the My Number Card system were surveyed. Of that number, 64.8 percent of the institutions ...

Recent progress on the “sum product” problem recalls a celebrated mathematical result that revealed the power of miniature number systems. It’s one thing to turn a cartwheel in an open field. It’s ...

The p-adics form an infinite collection of number systems based on prime numbers. They’re at the heart of modern number theory. The rational numbers are the most familiar numbers: 1, -5, ½, and every ...