How many legs are there in the forest

There is one forest where 5 soldiers stay.
Each soldier has 5 acres to guard.
In each acre there are 5 big tigers.
Each big tiger has 5 little tigers.
Each tiger has 4 legs.
How many legs are there in the forest?
No other living beings exist in this forest!

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125 (Big Tigers) + 625 (Little Tigers) + 5 soldiers(2 legs) = 750 x 4 + 5 x 2 = 3010 legs