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What is the value of (2^7)?
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Answer and explanation
Correct answer: 128
\(2^7\) means multiplying 2 by itself seven times: \(2\times2\times2\times2\times2\times2\times2=128\). Therefore, the correct answer is 128. The value 64 is \(2^6\), so it is a close but incorrect option. Exam tip: each successive power of 2 is double the preceding power.
Frequently asked questions
What is the correct answer to this question?
128
Why is this the correct answer?
\(2^7\) means multiplying 2 by itself seven times: \(2\times2\times2\times2\times2\times2\times2=128\). Therefore, the correct answer is 128. The value 64 is \(2^6\), so it is a close but incorrect option. Exam tip: each successive power of 2 is double the preceding power.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
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