20 . 2+0 = 2
20 divided by 2 makes 10.
Is the same for 30,40,50,60,70,80 and 90.
By the sum of its digits: 10. By each of its individual digits: 11.
You can tell if the sum of the digits can be divided by 3.
0.1154
78
the sum of my digits is 6? answer=60
1
That means the number itself is divisible by three. the sum of the digits in 144, for example, is 9. 144 divided by 3 is 48. The sum of the digits in 21 is 3. 21 divided by 3 is 7.If the number is an even number and the sum of the digits is divisible by 3, the number is also divisible by 6. 144 is even and the sum of the digits is divisible by 3, so 144 is also divisible by 6. 144/6 = 24. And finally, if the sum is divisible by 9, the number itself is also divisible by 9. 27 is an example of this.
the sum of individual digits of a given integer number
Add the digits together. The sum of the digits of 23 is 5.
a number can be divided by 2 evenly only if the number ends in the following numbers...0, 2, 4, 6, 8a number can be divided by 3 evenly only if the sum of all the digits in the number is divisible by 3a number can be divided by 4 if the numbers last two digits are divisible by 4a number can be divided by 5 only if the number ends in the following... 0, 5a number can be divided by 6 only if the number is divisible by two and threea number can be divide by 7 only if the number can be divided by 7 (no way for 7)a number can be divided by 8 only if the last two digits of the number is divisible by 8a number can be divided by 9 only if the sum of all the digits in the number is divisible by 9a number can be divided by ten only if it ends with the number zero
Take the question apart, one step at a time. The remainder, when the number is divided by 5, is 4. That means that the ones digit is either 4 or 9. However, you know that both digits are odd, which means it has to be 9. The sum of the digits is 10, so the tens digit has to be 1. Your number is 19.
The number is 45. The sum of its digits i.e. 4+5=9 Five times the sum of its digits i.e. 5 times 9 which is 45