# Abstract Confusions

Complexity is not a cause of confusion. It is a result of it.

I always go fancy over even numbers, and odd numbers doesn’t appeal to me, on that note, number 2009 was a dull year to me. But number 2009 turns out to rather be a mathematical marvel. 2009 factorial ends exactly with 500 0’s. Last 500 digits of $2009!$ is 0. And there will be one more extra zero at the end in 2010 factorial.
Number characteristics are known by their prime number ingredients. Looking at the prime factors of 2010: $2 \times 3 \times 5 \times 67 = 2010$. Of recent, only 2002 had distinct four prime factors, $2 \times 7 \times 11 \times 13 = 2002$. In a way 2010 is special, since all the factors are distinct and did not repeat.