17
something!
1
Three of them.
There are 21.
31 + 62 + 93 + 13 + 26 + 39 = 264
5.68 is not a digit, it is three digits.
2 or 3 digits.
Three of them.
There are 21.
997
Every number from 100 to 999 inclusive !
I am not sure; mayube 954
the range of three-digit integers is from 100 to 999. Therefore, there are 300 positive three-digit integers that are divisible by neither 2 nor 3.1 day ago
Of the 729 numbers that satisfy the requirement of positive integers, 104 are divisible by 7.
31 + 62 + 93 + 13 + 26 + 39 = 264
5.68 is not a digit, it is three digits.
102 is the smallest three digit number with different digits.
In this type of question, you need to fill out the largest digit you can, one at a time, from left to right. The largest digit you can use for the leftmost position, is 9, the largest digit for the next position is 9, etc.; in summary, the final result is:999999 (if you want AT MOST three different digits), or 999987 (if you want EXACTLY three different digits).
24 three digit numbers if repetition of digits is not allowed. 4P3 = 24.If repetition of digits is allowed then we have:For 3 repetitions, 4 three digit numbers.For 2 repetitions, 36 three digit numbers.So we have a total of 64 three digit numbers if repetition of digits is allowed.