9876543120
Let me first re-phrase your question: What is the number of (positive) integers less than 10000 (5 digits) and greater than 999 (3 digits)? The greatest 4 digit integer would be 9999. The greatest 3 digit integer would be 999. Let's do some subtraction: 9999 - 999 = 9000 This works because as we count up from 999, each positive integer encountered satisfies your requirements until reaching 10000.
The "7" digit had the greatest value because it is in the UNITS column.
01337
The digit with the second greatest value in the number is '1'. its value is second to the largest number which is 2.
9999 is the 4-digit number and 999 is the 3-digit number.
The smallest positive 4-digit multiple of seven is 1,001.
The smallest, positive 4-digit multiple of 17 is 1,003.
greatest common multiple can be 100 digit number or many digit number.. but the lowest common multiple is 44..
The greatest 3-digit multiple of 33 is 30. 33 x 30 = 990
The only positive two-digit multiple of 12 and 10 is 60.
The greatest 4-digit number that is divisible by 16 is 9984
-8
No 5 digit number can equal 12 and so there can be no answer to the question.
995
1822227777
-10
The greatest 4 digit integer divisible by 3 (and therefore a multiple of 3) is 9999.