Any one of the ten digits may be chosen first, and any of the remaining digits as the second one. Therefore, there are 90 such numbers, which you can list yourself by following the indicated pattern. The beginning of the list is 01, 02, 03, .....
9,999,876 is the greatest seven-digit number using four different digits.
1111, unless you allow negative number. In that case, the answer is -9999.
99874To solve this type of problems, you go from left to right, using the largest possible digit in every case.
The biggest 4 digit number that can be made from using the digits of 850236, using a digit at most once, is 8653.
It is -987654. The smallest POSITIVE number is 102345.
The sum is 154.
Assign the digits from left to right, using the largest possible digit in each case. Don't forget to reserve an even digit for the last position.
9,999,876 is the greatest seven-digit number using four different digits.
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.
1111, unless you allow negative number. In that case, the answer is -9999.
99 is the largest two digit number. If I can use the digits anyway I want, then 9 to the 9th power is larger
Assuming that the first digit of the 4 digit number cannot be 0, then there are 9 possible digits for the first of the four. Also assuming that each digit does not need to be unique, then the next three digits of the four can have 10 possible for each. That results in 9x10x10x10 = 9000 possible 4 digit numbers. If, however, you can not use the same number twice in completing the 4 digit number, and the first digit cannot be 0, then the result is 9x9x8x7 = 4536 possible 4 digit numbers. If the 4 digit number can start with 0, then there are 10,000 possible 4 digit numbers. If the 4 digit number can start with 0, and you cannot use any number twice, then the result is 10x9x8x7 = 5040 possilbe 4 digit numbers.
If the digits can repeat, then there are 256 possible combinations. If they can't repeat, then there are 24 possibilities.
99874To solve this type of problems, you go from left to right, using the largest possible digit in every case.
The biggest 4 digit number that can be made from using the digits of 850236, using a digit at most once, is 8653.
With repeating digits, there are 33 = 27 possible combinations.Without repeating any digits, there are 6 combinations:357375537573735753
It is -987654. The smallest POSITIVE number is 102345.