"What is 7840 to the 2nd power? (What is Seven thousand eight hundred forty to the second power?)" is the math problem we are solving here. In mathematical terms, 7840 is the base and 2 is the exponent as follows:
78402
The problem above (7840 to the 2nd power) means that you multiply 7840 by itself. In other words, 7840 × 7840. When we do that, we get the answer as follows:
61,465,600
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