The place value of each digit in the number 123,456 can be determined by its position from right to left. Here's the breakdown:

• 1 is in the hundred thousand place, so its place value is 100,000.
• 2 is in the ten thousand place, so its place value is 20,000.
• 3 is in the thousand place, so its place value is 3,000.
• 4 is in the hundred place, so its place value is 400.
• 5 is in the ten place, so its place value is 50.
• 6 is in the ones place, so its place value is 6.

Thus, the place value of each digit is determined by its position within the number.

Would you like more details or have any questions?

Here are 5 related questions:

1. What is the place value of 7 in the number 478,392?
2. How do place values change when the number shifts one place to the left or right?
3. What is the place value of the digit 0 in a large number?
4. How would you write 123,456 in expanded form using place values?
5. What is the difference between face value and place value?

Tip: The place value increases by a factor of 10 as you move from right to left in a number.