It is not the number of study permits that will be approved this year ... India was by far the most significant source country, with 2.2 lakh new students, followed by China with 52,000 odd new ...

Leonhard Euler later proved it. But tweaking the question just a little bit—by insisting that one of the numbers you’re squaring be odd, perhaps, or a perfect square—makes the problem much ...

One of my favorite anecdotes about prime numbers concerns Alexander Grothendieck, who was among the most brilliant mathematicians of the 20th century. According to one account, he was once asked ...