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What is the number n where if the sum of the digits of the number is divisible by n the number itself is divisible by n?
Wiki User
∙ 2010-06-09 00:45:42
3 and 9.
93 has a digit sum of 12, initially, which is divisible by 3, but not by 9. So 93 is divisible by 3, but not by 9.
99 has a digit sum of 18, initially, which is divisible by 3 and 9. So 99 is divisible by both 3 and 9.
Wiki User
∙ 2010-06-09 00:45:42
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If the sum of the digit is divisible by 3 the number is divisible by?
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.
What is a number n where if the sum of the digits of the number is divisible by n, then the number itself is divisible by n?
(The assumes that "the number" in the question is not n, although if they are they same number, this is still true.) "If the sum of the digits of the number is divisible by n, then the number itself is divisible by n" is true if n is 3 or if n is 9.
A number is divisible by 3 if the blank is divisible by 3?
A number is divisible by 3 if the sum of its digits is divisible by 3.
A number n where if the sum of the digits of the number is divisible by n then then the number itself is divisible by n?
This works with 3, and with 9.
What is a number n where if the sum of the digits of the number is divisible by n then the number itself is divisible by n?
That works with 3 and 9.
A number n where if the sum of the digits of the number is divisible by n then the number itself is divisible by n?
n = 1, 3 or 9.
Indentify the conclusion what conditional a number is divisible by 3 if the sum of the digits of the number is divisible by 3?
If the sum of the digits of a number is divisible by 3, then the number is divisible by 3.
Is 1 trillion 17 a prime number?
Since the sum of the digits is divisible by 3, the original number is also divisible by 3.Since the sum of the digits is divisible by 3, the original number is also divisible by 3.Since the sum of the digits is divisible by 3, the original number is also divisible by 3.Since the sum of the digits is divisible by 3, the original number is also divisible by 3.
Is 345456543 a prime number?
No, this number is divisible by 3 and hence is not a prime number. You can tell that fast by adding the individual digits. If that sum is itself divisible by 3, as this one is, then the number itself is divisible by 3.
Is 531 a prime number?
No. The sum of its digits, 5 + 3 + 1, is divisible by 3, which means the number itself is also divisible by 3.
If the sum of the digits is divisible by 3 the number is divisible by what?
9
If the sum of the digits is divisible by 3 the number is divisible by?
9
