1. Tardigrade
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  3. Mathematics
  4. For each n ∈ N , 23 n -1 is divisible by

Q. For each $n \in N , 2^{3 n }-1$ is divisible by

KCETKCET 2022 Report Error

Solution:

Substitute $n=12^{3}-1=7$ is divisible by $7$ only.

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