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प्रश्न
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.
पर्याय
True
False
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उत्तर
If a number is divisible by 3 and 7, it must be divisible by 21. True
Example: 42 is divisible by both 3 and 7. It is also divisible by 21.
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संबंधित प्रश्न
Test the divisibility of the following number by 3:
872645
Test the divisibility of the following numbers by 5:
4965
Test the divisibility of the following numbers by 7:
14126
Test the divisibility of the following numbers by 9:
257106
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:
467*91
Find the greatest number that will divide 445, 572 and 699, leaving remainders 4, 5, 6 respectively.
Which of the following numbers is divisible by 8?
What least number should be replaced for * so that the number 67301*2 is exactly divisible by 9?
Why are divisibility tests useful?
