Evaluate
99970002000\sqrt{9997}+1\approx 9.995500537 \cdot 10^{12}
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9998000\times 9999\sqrt{9997}+1
Multiply 1000 and 9998 to get 9998000.
99970002000\sqrt{9997}+1
Multiply 9998000 and 9999 to get 99970002000.
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