Python Logarithm, Value Error : math domain error

Question

I am learning math with python, when I tried this code for logarithm it give me this error, any help ?

import math
n = 1000000
n2 = 0
for i in range(n):
    x = math.log2(i)
    n2 += x
print(n2)

it give me a value error : "ValueError: math domain error"

Answer 1

import math
n = 1000000
n2 = 0
for i in range(1,n):
    x = math.log2(i)
    n2 += x
print(n2)

happy codeing !