Leaving out 077, since it is actually a two digit number, the answer is 35.
There are exactly 71 of them.
1
Exactly 2: 243 of them.
Exactly 3,628,800, or 10!.
Leaving out 077, since it is actually a two digit number, the answer is 35.
27: 077,177,277,377,477,577,677,877,977,717,727,737,747,757,767,777,787,797
There are 6804 such numbers.
There are exactly 71 of them.
the right answer is 10 cause there is o,1,2,3,4,5,6,7,8,9 so there 10 numbers in total which have 1 digit
If you include the number 3,000, there are exactly 2,001 4-digit numbers between 500 and 3000.
1
Exactly 2: 243 of them.
18
Exactly 3,628,800, or 10!.
There are 22680 numbers, excluding those with leading 0s.
12.