# What is a number Cannot be shown as pairs of cubes?

## What is a number Cannot be shown as pairs of cubes?

It is known that one cannot write an integer cube as a sum of two integer cubes (Fermat’s Last Theorem). The number 1728 (= 123) comes close to being the sum of two cubes, but falls short by 1. An entry in Srinivasa Ramanujan’s Lost Notebook gives a remarkable identity which provides infinitely many such examples.

How do you know if a number is a sum of cubes?

Cube Numbers List

Why are they called cube numbers They are named cube numbers (or cubed numbers) because they can also be used to calculate the volume of a cube: since a cube is a 3d shape with sides of the same length, width and height, you calculate its volume by multiplying the side length by itself twice (or ‘cubing’ it).

9 cubes
The 5th drawing will have a total of 9 cubes.

How do you find the number of cubes?

What is the cube of an integer called?

School cards; at least 5 minutes a day.

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