Not To Have.
No.
None.
By analyzing its shape, the hanzi[2] character 無 can be seen as a composition of 0 main characters.
Its radical[1] is: ()
In cangjie it is written with OTF
No more components have been identified.
[1] A character's radical: 部bùsection 首shǒuheader Radical
[2] Hanzi stands for: 汉hànChinese 字zìCharacter