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प्रश्न
Test the divisibility of the following numbers by 8:
2138
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उत्तर
A number is divisible by 8 if the number formed by the last three digits (digits in the hundreds, tens, and units places) is divisible by 8.
2138 is not divisible by 8.
It is because the number formed by its hundreds, tens and ones digits, i.e., 138, is not divisible by 8.
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Why are divisibility tests useful?
