0
Add your answer:
Earn +20 pts
What is a three-digit number that is a perfect square and perfect cube?
729, cube of 9 and square of 27
What is a perfect cube number?
A perfect cube is the cube of an integer (whole number). This means that, for n to be a perfect cube, n = x3, x∈ℤ Eg. ±1 [=(±1)3], 8 [=(±2)3], ±27 [= (±3)3], etc.
What is the odd number out 16 36 64 27 81?
The only number in that list which is not a square number is 27. 27 is a cube number.
Is 16 a cube number?
Of a whole number? no. 2 x 2 x 2 = 8 3 x 3 x3 = 27
Is 27 a perfect cube?
Yes because 3*3*3 = 27
What is a rational number whose cube root is a whole number?
27 is a perfect cube.
What is a three-digit number that is a perfect square and perfect cube?
729, cube of 9 and square of 27
What is a perfect cube number?
A perfect cube is the cube of an integer (whole number). This means that, for n to be a perfect cube, n = x3, x∈ℤ Eg. ±1 [=(±1)3], 8 [=(±2)3], ±27 [= (±3)3], etc.
What is perfect square and perfect cube?
The square root of a perfect square and the cube root of a perfect cube is always an integer. A perfect square is a number multiplied by itself. A perfect cube is a number multiplied by itself twice. Example: 3 x 3 is 9, the square of 3 3 x 3 x 3 is 27, the cube of 3
Is the number 28 a cube number?
No 3 cubed is 27 4 cubed is 64 Strictly it is the cube of the cube root of 28. The common description is that it is not a perfect cube.
What is the odd number out 16 36 64 27 81?
The only number in that list which is not a square number is 27. 27 is a cube number.
Is 16 a cube number?
Of a whole number? no. 2 x 2 x 2 = 8 3 x 3 x3 = 27
Is 27 a perfect square?
No, it's a perfect cube.
What number between 1 and 999 is a perfect square and a perfect cube?
729 27 x 27 = 729 9 x 9 x 9 =729
What is a perfect square and perfect cubed number?
To find a number that is both a perfect square and a perfect cube, we must solve x2 = x3 over x ∈Z+. The only two solutions to this equation are 0 and 1, or x = {0,1}. Therefore, zero and one are the only two numbers that are both perfect squares and perfect cubes. --In easier terms: a perfect square is a number that can be "square rooted" and have no remainder. Like, 144. The square root is 12 therefore 144 is a perfect square. A perfect Cube is the same except that it must be "cubed rooted". Like 27. The cube root of this number is 3 therefore 27 is a perfect cube.
What numbers are perfect cubes?
any number multiplied by itself three times is a cube number eg. 3 x 3 x 3 =27 5 x 5 x 5 =125 so 27 is a cube number, so is 125 you can work out if something is a cube number by cube rooting it there is a cube root button on most scientific calculators
What is the largest factor of 135 that is a perfect cube?
Perfect cubes smaller than 135 are 1, 8, 27, 64, and 125. Of these, 1 and 27 are factors of 135, so 27 is the largest factor of 135 that is a perfect cube.
