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Mnenie [13.5K]
3 years ago
6

Which number multiplied by itself will give the output as 12345678987654321?​

Mathematics
1 answer:
STALIN [3.7K]3 years ago
3 0

Answer:what we observe is that the square of the number follows a pattern: 2 1's gives 121. 3 1's gives 12321. so to get 12345678987654321 we need to get square of 9 1's(111,111,111).

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