Solve this place value riddle:
1. It is a four-digit whole number.
2. The product of its hundreds digit and its tens digit is 6.
3. The product of its thousands digit and its ones digit is 14.
4. Two of its digits are the same.
5. The product of its tens digit and its ones digit is 21.
1. It is a four-digit whole number.
2. The product of its hundreds digit and its tens digit is 6.
3. The product of its thousands digit and its ones digit is 14.
4. Two of its digits are the same.
5. The product of its tens digit and its ones digit is 21.
