What is the smallest 4 digit odd number that can be formed with the digits 4,7,3 and 5

how about

3457 ?

To find the smallest 4-digit odd number that can be formed with the digits 4, 7, 3, and 5, we need to arrange these digits in a way that gives the smallest odd number.

Since an odd number is defined as a number that is not divisible by 2, we need to make sure the last digit is odd.

The smallest odd digit from the given digits is 3. Therefore, we will place 3 as the units digit.

Next, we have three digits left: 4, 7, and 5.

To form the smallest 4-digit number, the thousands, hundreds, and tens digits should be as small as possible.

The smallest digit from the remaining digits is 4. Therefore, we will place 4 as the thousands digit.

The remaining two digits, 7 and 5, can be placed in any order. To make the whole number as small as possible, we will place the smaller digit, which is 5, as the hundreds digit and the larger digit, which is 7, as the tens digit.

Putting our digits together, we have the smallest 4-digit odd number formed by the digits 4, 7, 3, and 5, which is 4,573.

To find the smallest 4-digit odd number that can be formed with the digits 4, 7, 3, and 5, you need to arrange the digits in ascending order and ensure that the units digit is odd. Here's how you can find the answer step by step:

Step 1: Start by sorting the digits in ascending order: 3, 4, 5, 7.

Step 2: Since the units digit needs to be odd, the last digit should be either 3 or 5. However, we want the smallest possible number, so we choose 3 as the units digit.

Step 3: Now, we have the digits 3, 4, 5, and 7. Arrange them in ascending order: 3, 4, 5, 7.

Step 4: Combine the digits to form the smallest possible number: 3457.

Therefore, the smallest 4-digit odd number that can be formed with the digits 4, 7, 3, and 5 is 3457.