3 and 9. And they divide into 123456789 whether or not you use divisibility rules!
No.
Its digits add up to 9 so therefore it is divisible by 9
It is even and the sum of its digits is divisible by 9.
No. To check divisibility by nine, sum the digits. If they add up to 9 (or a multiple of 9) then the number is divisible by 9. This trick works for 9 divisibility and 3 divisibility. In this problem: 3 + 0 + 9 + 1 = 13, which is not divisible by 9. Suppose the number was 3591: 3+5+9+1=18, which is divisible by 9 (you can check 1+8=9). You can keep summing the digits of the new numbers till you get to a number which is either 9 or some other number. (If it's 3 or 6, then the number is divisible by 3)
8, yes. 9, no.
The multiples of 9 are: 1 and 9 3 and 3
Yes. It is the divisibility rule for 9.
Yes
a number is divisible by 9 if the sum of the digits is divisible by 9.
It is: 9/50 = 0.18
It is 3 6 9
3 and 9. And they divide into 123456789 whether or not you use divisibility rules!
If the digit sum of a number adds up to 9 then it is divisible by 9.
No.
3Any number whose digital sum add up to 9 is divisible by 9
9 because the digits of 36 add up to 9