This depends on the type of number you want. For integers, the answer is 105. For real numbers, the answer is -.005.
105.
The smallest, positive 5-digit whole number is 10,000
105 - is the smallest tree-digit number that has the digit 5
The smallest 5 digit number you can write is 10000.
01234 is, technically a 4-digit number. Also, 10234 is not the smallest 5 digit number. The smallest 5 digit [positive] number is 10000.
10002
10,234 is the smallest 5-digit number meeting your restrictions.
105
the greatest is bigger than the smallest
A three-digit number divisible by both 2 and 5 must end with a 0, as this is the only digit that satisfies both conditions. The smallest three-digit number is 100, and the largest is 999. Therefore, any three-digit number that ends in 0, such as 100, 110, or 990, is divisible by both 2 and 5.
Take the smallest 6-digit even number, then subtract one from it.
The smallest 5-digit number is 10,000. The predecessor of 10,000 is 9,999, which is the largest 4-digit number. Thus, the answer is 9,999.