A Chinese general has well trained troops. On the command THREE they form three columns, but in the first row there are only two soldiers. FIVE puts soldiers in 5 columns, but has 4 soldiers in the first row. SEVEN has 6 soldiers in the first row. ELEVEN has 10 soldiers in the first row. In all formations the soldiers are aligned perfectly except in the first row.

How many soldiers does the general have in this brigade?

by *Leslie Green*