The conversation between human and AI assistant.
How many possible ways can you get 6-digit numbers using 0-9?
Is there any way to make it easier to calculate?
Yes, we can use the formula for permutations, which is n factorial divided by (n-r) factorial, where n is the total number of digits (10) and r is the number of digits in the number (6). So the calculation would be 10 factorial divided by 4 factorial, which gives us 1,000,000.