Here we will explain how to simplify the cube root of 6720 (∛6720). We start by labeling the parts of ∛6720 so it is easy to follow along:
∛6720 = 1∛6720 = c∛r
c = coefficient of the radical
∛ = radical
r = radicand
The cube root of 6720 in its simplest form means that you want the radicand to be as small as possible and the coefficient of the radical to be as large as possible.
To simplify the cube root of 6720, we first find the greatest perfect cube from the list of factors of 6720. The factors of 6720 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, and 6720.
Any number multiplied by itself three times will make a perfect cube. The greatest perfect cube from the list of factors above is 64 (4 times 4 times 4 equals 64).
To find the simplified radicand (r) in the cube root of 6720, we divide 6720 by 64, which gives us 105.
To find the simplified coefficient of the radical (c) in the cube root of 6720, we take the cube root of 64, which gives us 4.
That is how you simplify the cube root of 6720. Therefore, the cube root of 6720 in its simplest radical form is as follows:
∛6720 = 4∛105
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