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प्रश्न
Test the divisibility of the following numbers by 9:
3333
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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 3:
872645
Test the divisibility of the following numbers by 6:
872536
Test the divisibility of the following number by 10:
5790
Test the divisibility of the following number by 11:
901351
In the following number, replace * by the smallest number to make it divisible by 11:
39*43
Write (T) for true and (F) for false against the following statement:
If a number divides the sum of two numbers exactly, it must exactly divide the numbers separately.
Write (T) for true and (F) for false against the following statement:
A number is divisible by 18 if it is divisible by both 3 and 6.
Write (T) for true and (F) for false against the following statement:
If a number is divisible by both 9 and 10, it must be divisible by 90.
Which of the following numbers is divisible by 9?
Why are divisibility tests useful?
