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prime 1 - 9 are 5

prime 9-99 are 21

prime 99 - 999 are 143

prime 999-9999 are 1061

prime 9999-99999 are 8363

prime 99999-999999 are 68906

prime 999999-9999999 are 586081

chakravarthy

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dept of computer science

sri venkateswara arts college

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tirupati -517502

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13y ago

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