What's up in
Digital security depends on the difficulty of factoring large numbers. A new proof shows why one method for breaking digital encryption won’t work.
Equations, like numbers, cannot always be split into simpler elements.
Through exacting geometric calculations, Philip Gibbs has found the smallest known cover for any possible shape.
A new proof from the Australian science fiction writer Greg Egan and a 2011 proof anonymously posted online are now being hailed as significant advances on a puzzle mathematicians have been studying for at least 25 years.
A new statistical model appears to undermine long-held assumptions in number theory. How much should it be trusted when all that really matters is proof?