9876543210, without using any mathemeatical operations.
24
60
I think the answer is: 976542
The answer is 3*3*2*1 = 18. If the leading digit is 0 it is not a 4-digit number.
9876543210
9876543210, without using any mathemeatical operations.
24
60
468, 486, 648, 684, 846, 864.
4 x 3 x 2 ie 24
I think the answer is: 976542
The answer is 3*3*2*1 = 18. If the leading digit is 0 it is not a 4-digit number.
Oh, dude, I mean, like, there are 4 digits in 1230, right? So you can totally make 4-digit numbers by using each of those digits once. That's like, 4 factorial, which is 24. So, you can totally write 24 different four-digit numbers using 1230 without repeating any digit. Easy peasy!
With repeating digits, there are 33 = 27 possible combinations.Without repeating any digits, there are 6 combinations:357375537573735753
20. 16 without repeating a digit.
To get 900 using the digits 1 to 9 without repetition, you can multiply 9 by 100. This is because 9 times 100 equals 900. By using the digit 9 once and the digit 1 twice, you can achieve the desired result without repeating any digits.