There are 5760 such numbers.
-123456785
6*5*4*3*2*1=720 possible numbers
3, 7 and 9. 4 odd digits that add up to 19 would be 9, 9, 0.5, 0.5
A number is a multiple of 4 if the last 2 digits are a multiple of 4 The 10s digit is even and the last digit is 0, 4 or 8 The 10s digit is odd and the last digit is 2 or 6 A number is a multiple of 8 if the last 3 digits are a multiple of 8 The 100s digit is even and the last 2 digits are a multiple of 8 The 100s digit is odd and the last 2 digits are 4 times an odd number
There are 5760 such numbers.
This is permutations with repetition. The answer is 4^4 = 256 total permutations. Since 2 of the digits used are odd (and 2 are even), then half of the possibilities will be odd: 128 odd numbers.
4 x 6 x 5 x 4 = 480 if digits are not to be repeated. 4 x 73 = 1372 otherwise.
192 ways
24
With repeated digits, 43 = 64 Without repeated digits, 4*3*2 = 24
That would be 4! = 4 * 3 * 2 * 1 = 24
There are 5*4*3 = 60 such numbers.
3*3*3*3=81
The greatest 4-digit number with no repeated digits is... 9876
Without repeating any of the digits: 4*3*2*1 = 24 If repeated digits are allowed, then 4*4*4*4 = 256
5 is odd in digits and five has 4 alphabets which is even