Express each of the following as a product of powers of their prime factors in exponential form.
 
1. \(10240\) \(=\) ii×i
 
2. \(16875\) \(=\) ii×ii
 
3. \(36000\) \(=\) ii×ii×ii
 
4. \(50000\) \(=\) ii×ii
 
[NOTE: Write the base in ascending order]