No, but they can be whole numbers.
10
The largest whole number that uses all ten digits just once is 9876543210.
which is greater, whole number with 5 digits or the whole number with 6 digits?
The Hindu-Arabic numeral system uses ten digits, which are 0 through 9. This system is the most widely used numeral system in the world today, allowing for the representation of any whole number through combinations of these ten digits. Each digit's position in a number also determines its value, based on powers of ten.
The greatest whole number with 5 digits is 99,999. The next greater whole number is 100,000, which is the least whole number having 6 digits.
The least whole number with 6 digits is greater because it has more digits than 5 digits.
Ten digits= 1 billion
86,420
The largest ten digit number with no repeated digits is '9876543210'.
The least whole number with 6 digits, since 100000 > 99999
(of a number) altereing for convenience of expression or calculation, for example to the nearest whole number or multiple of ten or five:
99999 and 100000