just because
Number 7 has only one digit so it has only place value also.
It depends upon the digit placement. 7 can have different values as follows:777First 7 = 700Second 7 = 70Third 7 = 7I found it elsewhere on the web - my 8 year old 3rd grader, her after school tutors and I couldn't figure it out so I googled it.
9999876
Number of 7 digit combinations out of the 10 one-digit numbers = 120.
You have 9 options for the first digit; whichever digit you choose you have 8 options for the second digit, 7 for the third digit, 6 for the fourth digit - so you have a total of 9 x 8 x 7 x 6 different combinations. Sure I could make a list, but that would be rather boring - and utterly useless as well.
Since a binary digit has only two possible values, each digit bears less information than in decimal, where each digit can have ten different values.
> 9999876 Actually, 9999876 has four different digits (6, 7, 8, 9). The largest 7-digit number with three different digits is 9999987.
The possible values for the ones digit of a number are the integers from 0 to 9. This means the ones digit can be any of the following: 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9. Each digit represents the last digit in a number's decimal representation.
In the number 150000, the digit 5 is in the ten-thousands place, which represents a value of 50,000. In contrast, in the number 100500, the digit 5 is in the hundreds place, representing a value of 500. Since these two digits occupy different places and contribute different values to their respective numbers, their values are not the same.
You have seven different digits (symbols) to choose from, so you can form seven different one digit numbers and 7×7=72=49 different two digit numbers.
1,000,000 or, if they need to be different, then 1,023,456.
4: 4000, 6: 600, 7: 70, 8: 8. These are the values for each digit in 4678.