How many carbon atoms will be in the longest chain of 3,3,4,4-tetramethylhexane?

How many sub-chains will there be in 3,3,4,4-tetramethylhexane?

The molecular formula of 3,3,4,4-tetramethylhexane is C10H22, where C10 signifies the number of carbon atom which is 10. The side chains are located and designated with a number, so in this molecular formula it has 4 side chains or groups represented by 3,3,4,4.

6 and 4 I just did it