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!
468, 486, 648, 684, 846, 864.
60: First digit can be any of 5, second any of 4 and last any of the remaining 3, so 5 x 4 x 3
There are 4*4*3*2*1 = 96 such numbers.
Factorial 4 ie 4 x 3 x 2 x 1 = 24
Most people prefer to write numbers using digits since this is far shorter than writing out the relevant words.
24
60
96425 Larger numbers can be made by cascading the powers, but not on here because the notation won't take it.
4 x 3 x 2 ie 24
1023459
To form a 4-digit number using the digits 2, 6, 9, and 5 without repeating any digit, you can use all four digits. The number of ways to arrange 4 digits is calculated as 4! (4 factorial), which equals 24. Therefore, you can form 24 different 4-digit numbers with the numerals 2695 without repeating any digit.
Using only arrangements of the given digits: without repeating digits, 15. with repetition, 39. The answer does not include numbers such as 2^3 = 8 or 3^(2+1) = 27
648
468, 486, 648, 684, 846, 864.
To achieve the largest sum using four digits from the numbers 0-9 without repeating any digits, you should select the four largest available digits. The largest digits are 9, 8, 7, and 6. Adding these together gives you a sum of 9 + 8 + 7 + 6 = 30.
976542
9876543210, without using any mathemeatical operations.