How to remember?

Imagine that this Kanji is broken apart and becomes 2 T's, e.g. , which stands for Ten Thousand.

Radical

The radical of this Kanji is 一.

Do not confuse this Kanji with:

方 which means "direction"

力 which means "power"

The complicated / traditional form of this Kanji

萬 which is used in Tranditional Chinese (e.g. in Hong Kong and Taiwan) and sometimes in Japanese, especially in place names, human names and company names.