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Jokes poster

Why is 1729 such an interesting taxi number?

It's the sum of two cubes in two different ways.

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A4 portrait. It is drawn in vector form, so it also prints sharply scaled up to A3.

The poster

Cartoon maths joke poster. A smiling number 7 asks: "Why is 1729 such an interesting taxi number?" Punchline: "It's the sum of two cubes in two different ways."
Maths joke poster: Why is 1729 such an interesting taxi number?. CBSE Math Revision, free for classroom use.

Get it?

Get it? 1729 = 1³ + 12³ = 9³ + 10³: the smallest number that can be written as a sum of two positive cubes in two ways.

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