Which position of a digit represents its greatest value in a number?

The position of a digit that represents its greatest value in a number is indeed the farthest left. This is because the value of a digit in a number is determined not only by the digit itself but also by its place value, which increases exponentially as you move from right to left in the number system. For example, in the number 3,482, the digit '3' is in the thousands place, which gives it a value of 3,000, while the digit '8' in the hundreds place only contributes 800. Therefore, the leftmost digit, being positioned at the highest value place, holds the greatest value in that number compared to any digits positioned to its right. This principle applies across all numerical systems where place value is used.