A six digit number is a number that is six digits long, for example 100,000 and if it is not divisible by four that means it cannot be put into four equal piles without and remainder or decimals.
It is a 4 digit multiple of 6.
what is the largest three-digit number that is divisible by 4, 5, and 6
The lowest 4-digit number that is divisible by 6 is 1002
There can be no such number. If it is divisible by 5 and 6it must be divisible by 6.
If the last two digits are divisible by 4 then the number is divisible by 4. Thus, if the tens digit is even and the units digit is 0 or 4 or 8 OR if the tens digit is odd and the units digit is 2 or 6 then the number is divisible by 4.