There are an infinite number of them. But if you only count
the whole numbers, then there are only 69 of them.
744 digits.
630 digits.
Almost got me on this one. 20 numbers but 29 digits
36
There are the digits 1 through 9 for the first digit. Then, we have 0 through 9 for the second digit - excluding the first digit. For the third digit, we have 0 through 9 excluding the two previous digits
the main purpose of multiplication is to multiply 1 through as many digits as you want. :)
There are 2892 digits.
192 digits
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
You would get 9 single digits. You would get one digit for 1 through 9 and the rest of the numbers would be more than one digit.
There are 2700 digits.
11522