Q:

What is the cube root of 64?

A:

The cube root of 64 is 4. The cube root of a chosen number can be verified by multiplying a smaller number by itself three times in order to get the chosen number.

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The cube root of 64 is 4 because 4 times 4 equals 16, and 16 times 4 equals 64. The cube root of a number is similar to the square root of a number, except the latter is only to the power of two instead of three. Beyond the cube root is the fourth root, fifth root and so on. The key is how many times a number is multiplied by itself.

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Related Questions

• A:

Technically, the square root of a negative number cannot be taken, but if imaginary numbers are allowed, the answer would be 2i. It can be tempting for those people just learning how to deal with square roots to assume the square root of -4 would be -2, but this does not work because when -2 is multiplied by -2, the result is 4 rather than -4.

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• A:

The definition of a perfect cube is a number that is the result of multiplying an integer by itself three times. In other words, according to Reference.com, it is an integer to the third power. An integer is any positive or negative whole number and zero.

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• A:

When you cube a number, you multiply it by itself three times. A cube root is the value that, when cubed, gives you the original number. One way to find the cube root of a value is by going down the numbers and cubing them until getting the original value.