99882
999996
The greatest three digit number that is divisible by 7 is 994.
How about: 960
The greatest 4-digit number that is divisible by 16 is 9984
There is no 4-digit number that is divisible by zero.
The integers divisible by those 5 numbers are exactly the multiples of 1008. The largest multiple of 1008 which is still a four-digit number is 9*1008 = 9072.
998
9999
96
99,990.
It is 99992.