The largest five-digit prime number is 99,991.
98642
84999
98765
99990 Note that if you add 11 to my answer you get a 6-digit number therefore it must be the largest 5-digit whole multiple of 11.
The largest five-digit multiple of three is 99,999
The largest five-digit prime number is 99,991.
99,975
99,887
98642
9995
99,998
It is 9999 (if a one is added, it becomes a five digit number: 9999 + 1 = 10,000)
84999
98765
99990 Note that if you add 11 to my answer you get a 6-digit number therefore it must be the largest 5-digit whole multiple of 11.
20499