There are different numbers of combinations for groups of different sizes out of 9:
1 combination of 9 digits
9 combinations of 1 digit and of 8 digits
36 combinations of 2 digits and of 7 digits
84 combinations of 3 digits and of 6 digits
126 combinations of 4 digits and of 5 digits
255 combinations in all.
Yes, in a 3-digit lock combination, the digits can range from 0 to 9. This means that each digit in the combination can be any number from 0 to 9, including the digit 0. Therefore, 0s can certainly appear in 3-digit lock combinations.
There is no single digit number greater than 9. After 9 is 10, which is a double-digit number.
For a six digit number the most significant digit cannot be zero (it will otherwise cease to be a six digit number). So MS digit can be 1,2,3,4,5,6,7,8, or 9. The Other five digits can be 0,1,2,3,4,5,6,7,8, or 9. Hence total number of six digit numbers that can be made with 0 to 9 is 9 x 10 x 10 x 10 x 10 x 10 = 900000
The number in the units digit of the number 921 is 9.
When creating a 6-number combination using digits from 0 to 9, where each digit can be repeated, there are 10 possible choices for each of the 6 positions. Therefore, the total number of combinations is calculated as (10^6), which equals 1,000,000.
Yes, in a 3-digit lock combination, the digits can range from 0 to 9. This means that each digit in the combination can be any number from 0 to 9, including the digit 0. Therefore, 0s can certainly appear in 3-digit lock combinations.
There is no single digit number greater than 9. After 9 is 10, which is a double-digit number.
For a six digit number the most significant digit cannot be zero (it will otherwise cease to be a six digit number). So MS digit can be 1,2,3,4,5,6,7,8, or 9. The Other five digits can be 0,1,2,3,4,5,6,7,8, or 9. Hence total number of six digit numbers that can be made with 0 to 9 is 9 x 10 x 10 x 10 x 10 x 10 = 900000
The number in the units digit of the number 921 is 9.
Oh, dude, there are like a bazillion 6-digit number combinations from 1-9. I mean, you've got 9 options for each digit, so that's 9 x 9 x 9 x 9 x 9 x 9... I lost count, but you get the idea. It's a lot, man. But hey, if you ever need a 6-digit number, you've got plenty to choose from!
The greatest 3-digit number is 999. 9+9+9 = 27 The sum of the greatest 3-digit number is 27.
When creating a 6-number combination using digits from 0 to 9, where each digit can be repeated, there are 10 possible choices for each of the 6 positions. Therefore, the total number of combinations is calculated as (10^6), which equals 1,000,000.
A 9-digit number can range from 000000000 to 999999999, which gives a total of 1,000,000,000 (or 10^9) possible variations. Each digit can be any number from 0 to 9, resulting in 10 choices for each of the 9 digits. Therefore, there are 10^9 variations of a 9-digit number.
With no digit rejected, 999999999 With no digit repeated, 987654321
well the first 9 digit number is 100 million 100,000,000 the last 9 digit number is 999 million 999,999,999 just minus the two numbers and you get... 899,999,999 so there are around 900 million 9 digit numbers.
The greatest possible number that a 5-digit combination can form is 99999. This is achieved by using the highest digit, 9, in each of the five places. Therefore, the largest 5-digit number is 99999.
Digit is not a real number unless it is 0-9