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)
If the digit sum of a number is 9 then it is divisible by 9
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
Yes
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)
Is the number even and do its digits total a multiple of 3?
If the digit sum of a number is 9 then it is divisible by 9
8, yes. 9, no.
A number is divisible by 6 if it is divisible by 2 and 3. 54/6 = 9, 54/3 = 18, 54/2 = 27 - therefore, 54 is divisible by 6.
The multiples of 9 are: 1 and 9 3 and 3
Yes. It is the divisibility rule for 9.
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!