Question 851495

Hundreds digit = 4x
Tens digit = 2x
Ones digit = x

x*(2x)*(4x) = 64

8x^3 = 64

x^3 = 64/8

x^3 = 8

Take the cube root of both sides.

ciberoot(x^3) = cuberoot(8)

x = 2

Hundreds digit = 4(2) or 8.
Tens digit = 2(2) or 4.
Ones digit = 2.

The three digit number is 842.