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प्रश्न
Check the divisibility of 21436587 by 9.
योग
उत्तर
The sum of the digits of 21436587 is 2 + 1 + 4 + 3 + 6 + 5 + 8 + 7 = 36.
This number is divisible by 9 (for 36 ÷ 9 = 4).
We conclude that 21436587 is divisible by 9.
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