24, and the word is digit, not diget!
16
Without repeating, 4. With repeating, 8.
5040
Factorial 4 ie 4 x 3 x 2 x 1 = 24
24
93876
4p3*3p1 equal to 72 ways
Including leading zeroes, the answer is 720. If you don't include leading zeroes, then 600.
Without repeating digits (not digets!) and without leading 0s, 600 of them.
To make 20 using 6 numbers without repeating them, you can use the following equation: (5 + 4) x (3 + 2) - 1 = 20. This equation utilizes the numbers 5, 4, 3, 2, and 1 without repeating any of them to reach the target number of 20. By strategically combining these numbers using addition, multiplication, and subtraction, you can achieve the desired result.
1 × (3 + 5 + 7 + 9 + 11 + 13 - 15 + 17) = 50.
4 x 3 x 2 ie 24