If six digit 2003 () () can be divided by 45, what are its last two digits? If four digit 36ab can be divided by 2,3,4,5,9 at the same time, what is 36ab? Add 10 points to answer the second question

If six digit 2003 () () can be divided by 45, what are its last two digits? If four digit 36ab can be divided by 2,3,4,5,9 at the same time, what is 36ab? Add 10 points to answer the second question

The last two digits are 40, which is 200340
36ab=3600