Solved cryptogram

One short equation ties together the five numbers that matter in mathematics, and nothing else.

Mathematics Facts, sourced to Wolfram MathWorld.

Or go to the puzzle’s own page first.

What it means

Euler's identity relates e, pi, the imaginary unit, one and zero in a single line with an equals sign and nothing left over. It is regularly voted the finest equation in mathematics, and the reason it feels surprising is that the five constants arrive from completely unrelated corners of the subject: growth, geometry, algebra, counting and nothing.

The claim comes from Wolfram MathWorld.

Nearby in the collection

The facts either side of this one.

About as hard as this one

Scored closest to it by the model behind our guide to solving cryptograms.

Every Mathematics Facts cryptogram · All fact collections

Strictly necessary

Signing in, saving your progress, remembering this choice and whether you picked the light or the dark theme. Always on, and never used for tracking.

Analytics

Lets Google Analytics set its cookies so we can see how the site is used. Left off, Google receives only cookieless pings that do not identify you or tie your visits together.

Functional

Not currently used — reserved for conveniences that would remember your settings.

Marketing

Not currently used. We show no ads.