Ряд логарифмов:
log₂ 2 + log₂ 3/2 + log₂ 4/3 + log₂ 5/4 + log₂ 6/5 + ... + log₂ 2015/2014 =
= log₂ + log₂ 3 - log₂ 2 + log₂ 4 - log₂ 3 + log₂ 5 - log₂ 4 + log₂ 6 - log₂ 5 + ...+
+log₂ 2014 - log₂ 2013 + log₂ 2015 - log₂ 2014 = log₂ 2015 > 11 (2¹¹ = 2048)