Using only the number 4 (as opposed to digit) Comment 2011 = 4 * 502 + 3 502 = 125 * 4 + 2 125 = 31 * 4 + 1 31 = 4 * 4 * 2 - 1 1 = 4/4 2 = sqrt(4) 3 = 4-4/4 --> 2011 = (((4 * 4 * sqrt(4) - 4/4) * 4 + 4/4) * 4 + sqrt(4)) * 4 + 4 - 4/4 Reply
2011 = 4 * 502 + 3
502 = 125 * 4 + 2
125 = 31 * 4 + 1
31 = 4 * 4 * 2 - 1
1 = 4/4
2 = sqrt(4)
3 = 4-4/4
--> 2011 = (((4 * 4 * sqrt(4) - 4/4) * 4 + 4/4) * 4 + sqrt(4)) * 4 + 4 - 4/4