Multiple choice

Find the missing term in the following series: 117649, 16807, 2401, 343, ?

  1. 49

  2. 64

  3. 7

  4. 35

  5. 39

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A Correct answer
Explanation

The series is powers of 7: 7^6, 7^5, 7^4, 7^3, 7^2. The next term is 7^2 = 49.

AI explanation

This series is based on descending powers of 7. The terms are 7 to the power of 6, 7 to the power of 5, 7 to the power of 4, and 7 to the power of 3. Following this pattern, the next term is 7 to the power of 2, which equals 49.