Find the value of x, x^15 = 32768.. Please help?

Method 1 :
x^15 = 32768
x^15 = 2^15
x = 2


Method 2 :
x^15 = 32768
(x^15)^(1/15) = (32768)^(1/15)
x = (2^15)^(1/15)
x = 2


Method 3 :
x^15 = 32768
log(x^15) = log(32768)
15log(x) = log(32768)
log(x) = (1/15)log(32768)
x = 10^[(1/15)log(32768)]
x = 2

32768 is a well known power of 2
32768 = 2^15

x^15 = 32768 = 2^15
x = 2

Use a calculator - 15th root of 33768... is x