You can factor 540 into prime factors. Then, for each prime factor that doesn't appear 3, 6, 9, ... times, add additional factors to complete a multiple of 3. These factors will make up the number "k".
If by cube you mean perfect cube (a cube of an integer), then no, and the nearest perfect cube is 81.
its 81
The cube root of this number is one more than the smallest prime
125
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.
The integer is 26
45
The number 784 is not a perfect cube. A perfect cube is defined as a number that can be expressed as the cube of an integer (i.e., (n^3) for some integer (n)). The cube root of 784 is approximately 9.24, which is not an integer, indicating that 784 cannot be represented as a whole number cubed.
64 = 4 cubed and 8 squared.
5
If by cube you mean perfect cube (a cube of an integer), then no, and the nearest perfect cube is 81.
its 81
A cube is any number multiplied by itself three times, eg 2 cubed = 2³ = 2×2×2 = 8; 1.5³ = 1.5×1.5×1.5 = 3.375 A perfect cube is an integer (whole number) that is the cube of an integer, eg 8 is a perfect cube as it is 2 cubed, but 9 is not a perfect cube as 9 = 2.08008382...³
4
The cube root of this number is 1 more than the smallest prime?
The number 27 has a cube root of 3, which is 2 (the smallest prime) plus 1.
The cube root of this number is one more than the smallest prime