ProjectEuler#52 Permuted multiples

#It can be seen that the number, 125874, and its double, 251748, contain
#exactly the same digits, but in a different order.

#Find the smallest positive integer, x, such that 2x, 3x, 4x, 5x, and 6x,
#contain the same digits.

def isMultsPerms(n):
    nStr = str(n)
    if len(nStr) == len(str(n*2)) == len(str(n*3)) ==\
       len(str(n*4)) == len(str(n*5)) == len(str(n*6)):
        count = 0
        for i in nStr:
            if i in str(n*2) and i in str(n*3) and i in str(n*4)\
               and i in str(n*5) and i in str(n*6):
                count += 1
        if count == len(nStr):
            return True
        else:
            return False

i = 1
while True:
    if isMultsPerms(i):
        print i
        break
    i += 1