Sum the digits in blocks of three from right to left. If the result is divisible by 27, then the number is divisible by 27
No remainder. It has the same rule as 3 for divisibility. Add them up and if that is divisible by 27 then the number is divisible by 27.
There is no easy rule for divisibility by 34.
The number must be divisible by 13 and by 11.
By tautology. If it did not work, it would not be a divisibility rule!
why does the divisibility rule work for 4
the divisibility rule for 2 is: The number is even;the last digit ends with a 2,4,6,8,10, etc.The divisibility rule fir 3 is: The sum of the number is divisible by 3The divisibility rule for 4 is: The last two digits are divisible by 4The divisibility rule for 5 is: The number ends with a 5 or 0The divisibility rule for 6 is: The sum CAN be divisible by 2 and or 3The divisibility rule for 9 is: The sum of the number is divisible by 9The divisibility rule for 10 is : The number ends with a 0
No remainder. It has the same rule as 3 for divisibility. Add them up and if that is divisible by 27 then the number is divisible by 27.
the number is even.
The divisibility rule for 2 works because the base of our number system, 10, is divisible by 2.
Use the divisibility rule for 10. If the number is divisible by 10, then it is obviously also divisible by 5.
If the number is even, it's divisible by 2.
There is no easy rule for divisibility by 34.
The rule is: if a number is divisible by 5 and 17 at the same time, that number is divisible by 85
The divisibility rules of 4 and 9 are combined to make the divisibility rule of 36.
The number must be divisible by 13 and by 11.
A number has to be even and also divisible by 3.
If the number is even, it's divisible by 2.