Divide the following:
1. 12257 ÷ 17
2. Divide the largest 4 digit number by 33.
3. Divide the sum of 90 and 435 by 15.
4. Divide the smallest 5 digit number by 25.
5. Divide 1368 by the largest prime number below 20.
Answers:
1. 721
2. 303
3. 35
4. 400
5. 72