The 3 digit numbers under 500 are 100 through 499.
999-111=888 888 3 digit numbers can be made with numbers between 1 - 9
There are 3 values (1, 2, 3) for each of the 4 digits. Therefore, there are 3*3*3*3 or 81 four digit numbers that can be formed.
If you can repeat a digit, there are 27. If you can't repeat a digit, there are only 6.
The smallest 3-digit multiple of 7 is 105 = 15*7 The largest 3-digit multiple of 7 is 994 = 142*7 So there are 142-14 = 128 3-digit multiples of 7, ie 128 3-digit numbers that are divisible by 7.
6*5*4*3*2*1=720
Four digit numbers span from 1000 to 9999. This totals (9999-1000) +1 = 9000 different four digit numbers
None. 3 digit numbers are not divisible by 19 digit numbers.
There are 151 3-digit numbers that are divisible by 6.
There are 84 such numbers.
The 3 digit numbers under 500 are 100 through 499.
3 digit numbers are lessthan 4 digit numbers
210
450 whole numbers.
100
999-111=888 888 3 digit numbers can be made with numbers between 1 - 9
There are 84 of them.