How can we determine whether a given number an be divided by

Devisable by 4,
Last two digits together is divisable by 4
被4整除，
尾兩位數字被4整除。
Devisable by 6,
Sum of all digit numbers divisable by 3 for even numbers only
被6整除，
雙數的所有數字之和被3整除。
Devisable by 7,
No method to determine.
被7整除，
沒有判斷的方法。
Devisable by 8,
Last two digits together is divisable by 8 with third-last digit is even number
or
Last two digits together is not divisable by 8 but divisable by 4 with third-last digit is odd number
被8整除，
尾兩位數字被8整除並且第尾三位為雙數
或
尾兩位數字不被8整除但被4整除並且第尾三位為單數
Devisable by 11,
Difference of sum of even-digit numbers and sum of odd-digit numbers is divisable by 11
雙數位的數字之和與單數位的數字之和的差被11整除