Question

1 2 9 64 625 7766 117649 find wrong number​

Answer 1

Step-by-step explanation:

wrong number is 2

Answer 2

In the given series, the wrong number is 7766.

Given,

The series:

1, 2, 9, 64, 625, 7766, 117649.

To find,

Wrong number in series.

Solution,

Here, it can be seen that the given series is

1, 2, 9, 64, 625, 7766, 117649.

Looking carefully, it can be observed that the pattern being followed in the given series is that, starting from 1, a natural number is being raised to a power of the preceding number or, the number which is '1 less than the number itself'.

For example, if 'n' is the number, then it will be $(n)^{n-1}$ in the series.

So, starting with 1, we can see that,

$1^{0}=1$

$2^1=2$

$3^2=9$

$4^3=64$

$5^4=625$

$6^5=7776$ → (It shall be 7776, but the given number is 7766).

$7^6=117649$

As we can see from above, 7766 is wrong in the series.

Therefore, in the given series, the wrong number is 7766.

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