If the digit sum of a number adds up to 9 then it is divisible by 9.
It is 3 6 9
Yes. It is the divisibility rule for 9.
It is even and the sum of its digits is divisible by 9.
Its digits add up to 9 so therefore it is divisible by 9
9 because the digits of 36 add up to 9
By tautology. If it did not work, it would not be a divisibility rule!
Because the final digital sum is 9 then it is divisible by 9 as follows 1827/9 = 203
If all the digits add up to 9 then it is divisable by 9
add all the digits together and see if it is divisible by nine.
What is the divisblity rule by 8
There is no easy rule for divisibility by 34.
The divisibility rule for 2 works because the base of our number system, 10, is divisible by 2.