5040 numbers can be made.
There are 9 x 10 x 10 x 10, or 9000 four-digit number that can be formed if the leading digit cannot be zero.
There are only two smaller 3-digit numbers and both of them have repeated digits.
1339
It is 120 if the digits cannot be repeated.
A very unique number; it is divisible by each single digit number except 5 and 7.
Choose from 4 for the first number, 3 for the second number, and 2 for the third number. Therefore there are 4*3*2 = 24 three digit numbers can be formed from 3769 if each digit is used only once.
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.
5040 numbers can be made.
There are 9 x 10 x 10 x 10, or 9000 four-digit number that can be formed if the leading digit cannot be zero.
3
There are only two smaller 3-digit numbers and both of them have repeated digits.
There are 2000 such numbers.
Only four numbers:20233032
1339
It is 120 if the digits cannot be repeated.
write the number that is 500 more than the biggest number that can be formed by all the odd 1 digit number