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 ...

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 ...

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 ...

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 ...