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प्रश्न
Test the divisibility of the following numbers by 9:
3333
उत्तर
A number is divisible by 9 if the sum of its digits is divisible by 9.
3333 is not divisible by 9, because the sum of its digits, 3 + 3 + 3 + 3, is 12, which is not divisible by 9.
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संबंधित प्रश्न
Test the divisibility of the following number by 2:
789403
Test the divisibility of the following number by 2:
357986
Test the divisibility of the following numbers by 5:
438750
Test the divisibility of the following numbers by 7:
826
In the following number, replace * by the smallest number to make it divisible by 9:
835*86
In the following number, replace * by the smallest number to make it divisible by 11:
39*43
In the following number, replace * by the smallest number to make it divisible by 11:
1723*4
Give an example of a number which is divisible by both 2 and 8 but not by 16.
Write (T) for true and (F) for false against the following statement:
If a number is divisible by 3 and 7, it must be divisible by 21.
Write (T) for true and (F) for false against the following statement:
The sum of two consecutive odd numbers is always divisible by 4.
