What remains (sans the final digit) is your specific account number within that bank. The final digit, sometimes called the “check digit,” has nothing to do with financial institutions. Issuers tack ...

Computers in working order and with correct software don’t make mistakes. People, however, make plenty of mistakes (including writing bad software or breaking ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...