Batch file to delete directories that begin with the same string.?

[marshmallow1304]

I want to create a batch file that deletes all directories that start with a certain folder path within another directory. Basically, I have a folder containing the following folders:

3456789abc\
3456789bcd\
3456789cde\
3456789def\
et cetera

5555a\
456ab\

I want the batch file to delete all folders within the directory that begin with 3456789 but not any other folders.