Is 123 a perfect cube?

If we look at the number 123, we know that the cube root is 4.9731898332686, and since this is not a whole number, we also know that 123 is not a perfect cube. If you want to learn more about perfect cube numbers we have a list of perfect cubes which covers the first 500 perfect cube numbers.

What is the cube root of 123?

Solution: Cube of Root Of 123 is 4.973.

Is negative 125 a perfect cube?

Yes, perfect cube numbers can be both positive and negative. For example, -125 is also a perfect cube since it is obtained by multiplying -5 three times. In other words, -5 × -5 × -5 = -125. Therefore, negative numbers can also be perfect cube numbers.

IS 125 is a perfect cube?

Also, the number 125 is called a perfect cube number since its cube root value is a whole number. Learn more about the perfect cube of numbers here.

What is perfect cube?

A perfect cube of a number is a number that is equal to the number, multiplied by itself, three times. If x is a perfect cube of y, then x = y³. Therefore, if we take the cube root of a perfect cube, we get a natural number and not a fraction. Hence, ³√x = y. For example, 8 is a perfect cube because ³√8 = 2.

How to check if a number is perfect cube

What is not a perfect cube?

For a number to be a perfect cube, each of its factors must be repeated thrice. 343, 1331 and 729 are the perfect cubes of 7, 11 and 9 respectively, whereas 625 is not, as 5 is repeating 4 times which is not a triplet. ​ 625 is not a perfect cube.

Which is not a perfect cube *?

Since 2 is not a perfect cube number. It is not easy to find the cube root of 2.

IS 124 a perfect cube?

If we look at the number 124, we know that the cube root is 4.9866309522386, and since this is not a whole number, we also know that 124 is not a perfect cube.

IS 122 a perfect cube?

If we look at the number 122, we know that the cube root is 4.9596756638423, and since this is not a whole number, we also know that 122 is not a perfect cube.

IS 128 is a perfect cube?

Hence 128 is not a perfect cube.

Can a negative number be a perfect cube?

A perfect cube can be positive or negative. Let us find the cubes of some positive and negative numbers.

Can a negative number be a cube?

The cube of a negative number will always result in a negative number. The cube of a positive number will always result in a positive number.

Can a negative be cubed?

Cubes always involve multiplying a number by itself three times, so if the number is negative the cube will always be negative (and if the cube is negative, its cube root has to be negative too).

Is 123 a square?

The square root of 123 is 11.090 approximated to 3 decimal places. √123 is an irrational number.

How is 123 a prime number?

No, 123 is not a prime number. The number 123 is divisible by 1, 3, 41, 123. For a number to be classified as a prime number, it should have exactly two factors. Since 123 has more than two factors, i.e. 1, 3, 41, 123, it is not a prime number.

What is the cube of 3³?

3³ = 3x3x3; 3x3 is 9, and 9x3 is 27. Hence, the 3 cubed is 27.

IS 121 is a perfect cube?

Is 121 a Perfect Cube? The number 121 on prime factorization gives 11 × 11. Here, the prime factor 11 is not in the power of 3. Therefore the cube root of 121 is irrational, hence 121 is not a perfect cube.

IS 120 a perfect cube?

Is 120 a Perfect Cube? The number 120 on prime factorization gives 2 × 2 × 2 × 3 × 5. Here, the prime factor 3 is not in the power of 3. Therefore the cube root of 120 is irrational, hence 120 is not a perfect cube.

IS 124 is a perfect square?

Is the number 124 a Perfect Square? The prime factorization of 124 = 2² × 31¹. Here, the prime factor 31 is not in the pair. Therefore, 124 is not a perfect square.

IS 144 is a perfect cube?

Is 144 a Perfect Cube? The number 144 on prime factorization gives 2 × 2 × 2 × 2 × 3 × 3. Here, the prime factor 2 is not in the power of 3. Therefore the cube root of 144 is irrational, hence 144 is not a perfect cube.

IS 135 a perfect cube yes or no?

We find that in making a triplet, the number 5 does not make a group of the triplet. Hence, 135 is not a perfect cube.

Can a perfect cube end with 3?

Units digits of perfect cubes: If a number ends in 0, its cube ends in 0. If a number ends in 2, its cube ends in 8. If a number ends in 3, its cube ends in 7.

Is 343 a perfect cube?

Yes, 343 is a perfect cube number, as it can be expressed as the product of three equal integers.

Can a perfect cube end with 2?

A perfect cube does not end with 2 zeroes. The given statement is false. So, there are perfect cubes like 8 and 1728 that end with 8. So, the cube of a two digit number cannot be a 3 digit number.