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Calculate any number cubed, n³. To cube a number multiply it by itself 3 times as in 4 x 4 x 4. Cube a number, decimal number or scientific E notation. Find perfect cubes.
The cube of 4 is a perfect cube because the number is the product of the three equal integers 4. It can be written as 4 × 4 × 4 or in exponential form. Read on to learn everything about the number four cubed, including useful identities.
Free math problem solver answers your algebra homework questions with step-by-step explanations.
4 cubed equals 64, because 4 × 4 × 4 = 64. Once 64 = 4 × 4 × 4, 64 is also known as a, so called, perfect cube. Use the cube calculator below to find the cube of any real number. See below the definition and examples of cubed numbers.
It is easy to work out the cube root of a perfect cube, but it is really hard to work out other cube roots. Example: what is the cube root of 30? Well, 3 × 3 × 3 = 27 and 4 × 4 × 4 = 64, so we can guess the answer is between 3 and 4.
In arithmetic and algebra, the cube of a number n is its third power, that is, the result of multiplying three instances of n together. The cube of a number or any other mathematical expression is denoted by a superscript 3, for example 23 = 8 or (x + 1)3. The cube is also the number multiplied by its square: n3 = n × n2 = n × n × n.
A cube number is the result of multiplying a number by itself twice. For example 2 3 = 2 × 2 × 2 = 8. When any whole number is multiplied by itself twice a cube number is formed. For example, 2 cubed means 2 × 2 × 2 which equals 8. Therefore we say that 8 is a cube number.